Fix issue with duplicate symbols in renderengine_test

The test binary statically links two renderengine targets both of
which included skia as a whole static lib which was causing symbol
collisions when attempting to roll in a new version of Skia.

Test: make
Bug: 179813345
Change-Id: I1208a003d85b4fd3c4d6df7765d0215ab13e584f
1 file changed