pixel-sepolicy: pixelstats: sysfs vendor_mm am: 77f7028279 am: 315d19eee5

Original change: https://android-review.googlesource.com/c/platform/hardware/google/pixel-sepolicy/+/3156062

Change-Id: I4e8dfaa64e3e191fb74a9c13f7c1b13e905b13d9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>