Add sysprop for MSFT HCI Ext vendor opcode am: a1c4e2a556 Original change: https://android-review.googlesource.com/c/platform/system/libsysprop/+/3466025 Change-Id: I1a9272b78ca1903e37fb0a1345778e1d63436d60 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>