fix(non linear font scaling): restore font scale to default instead of original

The original is unreliable and often undefined, which means we don't
restore the proper font scale when it returns MIN_VALUE.

Fix: 281854884
Test: atest FrameworksCoreTests:android.content.res.FontScaleConverterActivityTest

Change-Id: Ie5ae64e36f62d962dd36131fc7c1d70a512f7b6f
1 file changed