RotateAndCropMapper - reverse rotation direction.

Based on an end-to-end test of the RotateAndCropMapper, the rotation
is being applied in the wrong direction. After swapping 270 and 90
degree rotations, the output is as expected.

Bug: 261775770
Test: Ran face detection on app with all rotations
Change-Id: I209e360918d9e48abf2372527602b2b454e3b88a