This change add option '--name' to the patch builder
script allowing user to select the desired file name for the
patch file. If the 'name' option is not provided, file name will
default to patch id from the recipe.
Test plan:
PASS: Build patch with --name option
e.g: python3 patch_builder --recipe recipe.xml --name filename.patch
PASS: Build patch without --name option
e.g: python3 patch_builder --recipe recipe.xml
Story: 2010676
Task: 49858
Change-Id: Ia9b936d44ef83e6ff3d9561b22ae045fb2891f33
Signed-off-by: Dostoievski Batista <dostoievski.albinobatista@windriver.com>