Sandbox hidl genrules am: 70406c8b01

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/2823897

Change-Id: I8505decebb8b45bba8beee0ce20d77f12c4d34c9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>