Add timvp to opengl/OWNERS

aosp/1623124 recently updated the OWNERS file for GraphicsEnvironment
to point to opengl/OWNERS, rather than listing owners directly. This CL
adds timvp@, since he was listed previously.

Test: build
Change-Id: Ibb375cce8b860c38f61cf563ae632a90101bb0e5
1 file changed