[automerger skipped] libprocessgroup: fix reset of file_v2_name am: 2ffbeaef3a -s ours

am skip reason: Merged-In I5b33ca47b4fa5cabf582c8804bd13f72f6e58411 with SHA-1 3507846872 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/24235344

Change-Id: Ib100e072f46f5d32275f3cb43c90e27943f0b68d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>