vold: add gc period in setGCUrgentPace am: 7c788fc3e9 am: 81ba5bcf1c

Original change: https://android-review.googlesource.com/c/platform/system/vold/+/2032446

Change-Id: I2ec34972e89ecf6872dece12b0ab05bc9a07511c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>