Merge "Migrate from android::String isEmpty to empty" into main am: 594656ed52

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2745913

Change-Id: I833094249fc07e65dbbace20c78373ea8c5fa51d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>