Merge "vmbase: Support generating a Linux image header" into main am: a415320b44

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/3217920

Change-Id: I0092e2948130c33decf07d0e13cbf97de61baff4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>