[hypervisor] Add mmio_guard_init() to Hypervisor trait am: 90e6f16ad6 am: 070ea58159

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/2540112

Change-Id: I6c372655d340aa82753303487d2c332e8d4672c6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>