This does not fix the OGLSimpleCube sample. See swiftshader:81.

Change-Id: I4bb5755d8b63f234965c3d12f774706968f2d34e
Reviewed-on: https://swiftshader-review.googlesource.com/12088Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>