Fixed issue where GradientDrawable orientation was not

consumed properly

Moved methods to resolve the current gradient orientation
from GradientDrawable to GradientState. Fixed issue where
orientation parameter was not consumed properly in the
GradientDrawable constructor causing the angle and orientation
parameters to be out of sync.

Bug: 132420435
Test: Added test to CTS to verify GradientDrawable constructor behavior
Change-Id: I639d1ab4b8791810ea72c3f85878a8c7d9093661