Auto merge of #1534 - MortimerGoro:mali_T880_shader, r=glennw
Auto merge of #1534 - MortimerGoro:mali_T880_shader, r=glennw

Work around for Mali-T880 GPU driver program link error

See https://github.com/servo/webrender/issues/1403

About performance: Glenn was ok with this. The vertex shader is taking a lot less time compared to the fragment shader.

servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender