Hook up tgammaf properly for RS.
Hook up tgammaf properly for RS.

Change-Id: I9b489cbfe49b3c01028f23c1123bc272e100c60e
b: 3370708, 2933146

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base