Merge "Freezer: fix exception when parsing /proc/locks" into sc-dev am: ef12967b75 am: 57240b0a67

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15395534

Change-Id: I8605df085ec636ea1dba1096076bee5c1d6dd4f4