Merge "Specify that a read_write property can be read only in HAL" into udc-dev am: 4a29be87

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/22146390



Change-Id: If6c755a4db15052135d54e14a4767c08686d372b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>