In management network reconfiguration for AIO-SX, the runtime manifest
executed during host unlock could take more than five minutes to complete.
This commit is to extend the timeout period from five minutes to eight
minutes.
Test Plan:
PASS: AIO-SX subcloud mgmt network reconfiguration
Story: 2010722
Task: 49133
Change-Id: I6bc0bacad86e82cc1385132f9cf10b56002f385e
Signed-off-by: Teresa Ho <teresa.ho@windriver.com>