mesa: Refactor validate_texture_wrap_mode to use a switch-statement

This makes the next couple changes a little easier.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
1 file changed