[automerger skipped] Merge "Add an isCheckpointing() binder call for adb remount." into rvc-dev am: f87198e025 -s ours

am skip reason: Change-Id I33a691da3b99343acfc1e8ddf68a14504c3bfbe1 with SHA-1 23850d30f6 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/vold/+/11917729

Change-Id: I324e156e155f361491f963518f69a956ac23dd7f