Merge "camera2: Add system api to specify oom score offset while opening a...

Merge "camera2: Add system api to specify oom score offset while opening a camera." into sc-dev am: 441d5e9e am: e822c352

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14625167

Change-Id: I2ab1a916cfa3e6f2dbc9fc699752268660e043c5