[automerge] Update hibernation toggle title to have "if unused" 2p: 3cfc87cc am: 03a87f46

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/17450694



Change-Id: Iae410252fc9f1fb809bbbaf1d0b516fffbff1439
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>