Merge "[RpcSession] Add checks before setting SessionSpecificRoot" into main am: 7bbb484092

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/3185239

Change-Id: If784e55228f9e1db070f72e3568799a84bd4afb9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>