intel/compiler: Change selected_simd return type to int.

brw_simd_select return type is int.

Fix defect reported by Coverity Scan.

Unsigned compared against 0 (NO_EFFECT)
unsigned_compare: This less-than-zero comparison of an unsigned value is never true. selected_simd < 0U.

Fixes: 7dda0cf2b8e ("intel/compiler: Use SIMD selection helpers for CS")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13606>
1 file changed