Grant artd root capabilities that it needs to perform its tasks.

artd manages profiles and compilation artifacts that belongs individual
apps, so it needs root capabilities to do so.

The meaning of the capabilities can be found in `man capabilities 7`.

Bug: 177273468
Test: adb shell pm art delete-optimized-artifacts com.google.android.youtube
Change-Id: I2ef0778929bb7f83958b743b43abe4719c81ed2e
1 file changed