Build vendor_boot-chd_debug.img to add CHD debug ramdisk am: 12bb05a136 am: 4348857df0 am: 297d05f833

Original change: https://android-review.googlesource.com/c/platform/tools/treble/+/2908078

Change-Id: Iacad1eedf09b420547291b8b50b756768e0fc758
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>