OpenGL: Moving the GPU_pass_update_uniforms() call from GPU_material_bind_uniforms() to GPU_material_bind(). This way, material specific uniforms don't need to be resent when sending object specific uniforms. This saves uniform update calls in the BGE where one material is bound and multiple objects can be drawn. This doesn't offer much in the way of performance, but it cleans up our OpenGL usage a bit. One test scene went from 8k OpenGL calls to 4k with just this one change.

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@55527 954f8c5b-7b00-dc11-b283-0030488c597c