pxe-network-installer: add support for arm64

* Add grubaa64.efi

* use dpkg-architecture to check the host arch and
  replace the hardcoded names for arm64:
  - amd64 -> arm64
  - x64 -> aa64
  - ttyS0 -> ttyAMA0

* set biosplusefi=0 since legacy bios is not supported
  by ARM64.

* The dependency on syslinux-common is only for amd64
  since it's not supported by arm64.

Test Plan:
PASS: build-pkgs on x86-64 host
PASS: build-image on x86-64 host
PASS: build-pkgs on arm64 host
PASS: build-image on arm64 host
PASS: Deploy AIO-SX on x86-64 target
PASS: Deploy AIO-SX on arm64 target
PASS: Deploy AIO-DX on arm64 targets
PASS: Deploy std(2+2+2) on arm64 targets

Story: 2010739
Task: 48019

Change-Id: Ibd7feea4e1b0af88c00d46ddfbeaf8cdb1d34898
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>

installer/pxe-network-installer/debian/deb_folder/control

@@ -6,8 +6,9 @@ Homepage: https://www.starlingx.io
 Standards-Version: 4.5.1
 Build-Depends: debhelper-compat (= 13),
  build-info-dev,
- grub2,
- syslinux-common
+ grub2-common,
+ grub2            [amd64],
+ syslinux-common  [amd64]
 
 Package: pxe-network-installer
 Architecture: all

installer/pxe-network-installer/debian/deb_folder/rules

@@ -4,6 +4,8 @@
 export ROOT=$(CURDIR)/debian/tmp
 export platform_release="$(shell grep SW_VERSION /usr/include/build_info.h | cut -d ' ' -f 3)"
 
+export DEB_HOST_ARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH 2>/dev/null)
+
 %:
 	dh $@
 
@@ -19,6 +21,9 @@ override_dh_install:
 	install -v -d -m 755 $(ROOT)/usr/share/licenses/pxe-network-installer-1.0.0
 
 	# Add grub links
+ifeq ($(DEB_HOST_ARCH),arm64)
+	sed -i -e "s/ttyS0/ttyAMA0/" -e "s/\(efi-watchdog enable 0\) .*/\1 600/" grub.cfg.stx
+endif
 	install -v -m 644 default              $(ROOT)/var/pxeboot/pxelinux.cfg.files/default
 	install -v -m 644 default.static       $(ROOT)/var/pxeboot/pxelinux.cfg.files/default.static
 	install -v -m 644 pxe-grub.cfg         $(ROOT)/var/pxeboot/pxelinux.cfg.files/grub.cfg
@@ -26,14 +31,23 @@ override_dh_install:
 	install -v -m 644 grub.cfg.stx         $(ROOT)/var/pxeboot/pxelinux.cfg.files/grub.cfg.stx
 
 	# Add controller-0 pxeboot install grub menus and setup utility
+ifeq ($(DEB_HOST_ARCH),arm64)
+	sed -i -e "s/amd64/arm64/" -e "s/ttyS0/ttyAMA0/" -e "s/biosplusefi=1/biosplusefi=0/" pxeboot.cfg.debian efi-pxeboot.cfg.debian
+endif
 	install -p -D -m 644 pxeboot.cfg.debian $(ROOT)/var/pxeboot/pxelinux.cfg.files/pxeboot.cfg.debian
 	install -p -D -m 644 efi-pxeboot.cfg.debian $(ROOT)/var/pxeboot/pxelinux.cfg.files/efi-pxeboot.cfg.debian
 	install -p -D -m 755 pxeboot_setup.sh  $(ROOT)/usr/sbin/pxeboot_setup.sh
 	install -p -D -m 755 pxeboot-update.sh ${ROOT}/etc/pxeboot-update-${platform_release}.sh
 	install -p -D -m 644 pxeboot-feed.service $(ROOT)/lib/systemd/system/pxeboot-feed.service
+ifeq ($(DEB_HOST_ARCH),arm64)
+	sed -i -e "s/amd64/arm64/" -e "s/x64/aa64/" pxeboot_feed.sh
+endif
 	install -p -D -m 755 pxeboot_feed.sh  $(ROOT)/etc/init.d/pxeboot_feed
 
 	# Legacy BIOS System Node Install grub menus
+ifeq ($(DEB_HOST_ARCH),arm64)
+	sed -i -e "s/amd64/arm64/" -e "s/biosplusefi=1/biosplusefi=0/" debian-pxe-*-install
+endif
 	install -p -D -m 700     debian-pxe-controller-install  $(ROOT)/var/pxeboot/pxelinux.cfg.files/pxe-controller-install-${platform_release}
 	install -p -D -m 700     debian-pxe-smallsystem-install $(ROOT)/var/pxeboot/pxelinux.cfg.files/pxe-smallsystem-install-${platform_release}
 	install -p -D -m 700     debian-pxe-storage-install     $(ROOT)/var/pxeboot/pxelinux.cfg.files/pxe-storage-install-${platform_release}
@@ -42,6 +56,9 @@ override_dh_install:
 	install -p -D -m 700     debian-pxe-smallsystem_lowlatency-install $(ROOT)/var/pxeboot/pxelinux.cfg.files/pxe-smallsystem_lowlatency-install-${platform_release}
 
 	# UEFI System Node Install grub menus
+ifeq ($(DEB_HOST_ARCH),arm64)
+	sed -i -e "s/amd64/arm64/" -e "s/biosplusefi=1/biosplusefi=0/" efi-debian-pxe-*-install
+endif
 	install -p -D -m 700 efi-debian-pxe-controller-install  $(ROOT)/var/pxeboot/pxelinux.cfg.files/efi-pxe-controller-install-${platform_release}
 	install -p -D -m 700 efi-debian-pxe-smallsystem-install $(ROOT)/var/pxeboot/pxelinux.cfg.files/efi-pxe-smallsystem-install-${platform_release}
 	install -p -D -m 700 efi-debian-pxe-storage-install     $(ROOT)/var/pxeboot/pxelinux.cfg.files/efi-pxe-storage-install-${platform_release}
@@ -51,7 +68,11 @@ override_dh_install:
 
 	# Package pxeboot utilities in /var/pxeboot
 	install -d -m 755 $(ROOT)/var/pxeboot
+ifeq ($(DEB_HOST_ARCH),arm64)
+	install -p -D -m 700 pxeboot/grubaa64.efi $(ROOT)/var/pxeboot
+else
 	install -p -D -m 700 pxeboot/grubx64.efi $(ROOT)/var/pxeboot
+endif
 	install -p -D -m 700 pxeboot/menu.c32 $(ROOT)/var/pxeboot
 	install -p -D -m 700 pxeboot/ldlinux.c32 $(ROOT)/var/pxeboot
 	install -p -D -m 700 pxeboot/libcom32.c32 $(ROOT)/var/pxeboot