mesa: Don't allow wrong type setters for matrix uniforms

mesa: Don't allow wrong type setters for matrix uniforms

Previously we would allow glUniformMatrix4fv on a dmat4 and
glUniformMatrix4dv on a mat4.  Both are illegal.  That later also
overwrites the storage for the mat4 and causes bad things to happen.

Should fix the (new) arb_gpu_shader_fp64-wrong-type-setter piglit test.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Timothy Arceri <t_arceri@yahoo.com.au>
Cc: Dave Airlie <airlied@redhat.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>