Mark GL_RGB10_A2UI as a renderable format. dEQP-GLES3.functional.fbo.color.tex3d.rgb10_a2ui was already failing but because the framebuffer was marked as unsupported, dEQP considers the test to be passing. BUG=angleproject:1149 BUG=angleproject:1097 Change-Id: I82223e8e927d1fd6d66f75b5fdea7989c92d706d Reviewed-on: https://chromium-review.googlesource.com/298031 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>