spirv: handle undefined components for OpVectorShuffle

Fixes:
   dEQP-VK.spirv_assembly.instruction.compute.opspecconstantop.vector_related
   dEQP-VK.spirv_assembly.instruction.graphics.opspecconstantop.vector_related*

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: "17.0 13.0" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit bbe8705c579c3e464615a0ca9b2eb4bd3c16aad3)
1 file changed