Use CPU 4-7 when CAMERA_LAUNCH

Add powerhint configuration to use CPU 4-7 when CAMERA_LAUNCH

Bug: 188369995

Test: 1. Check camera daemon move to CPU 4-7 when camera launch
      2. P21 Camera Test Checklist done

Change-Id: I6ddc9ce664166c5b78c9a5bc427c800f0714b6ea
1 file changed