Draw text with a hairline stroke as if it is fill style

Dew to a side effect of HWUI opengl pipeline, the hairline stroke
is not respected, but it is drawn as a fill style. Implement the
same behaviour for skiagl pipeline with SDK API 27 and older.
On SDK released with Android P, the hairline stroke is respected.

Bug: 72494357
Test: Ran duolingo app
Change-Id: I48bdcf3ddec4bf65b5e93e01c5002177c4e3da90