Shorten clock tab animation

Bug: 25631044

The clock tab animation was noticeably longer than the other
tab animations. Some rotations were removed to shorten its
duration. Also, animated vectors are v22+, so the resource files
were moved into /animator-v22 to fix some lint warnings.

Change-Id: I90b116df2a3cc7a30bdd69b8e478207dd3f016fb