Extend permissions of cameraserver

Camera service will need to a way to query
the process state and oom score.

BUG: 34701266
Test: Manual testing + cts-tradefd run cts -m Camera --abi armeabi-v7a --disable-reboot
Change-Id: I4df704817d2fc728d421daeffbbbcee2e61d8c3b
1 file changed