nir: allow 5 component vectors

These will be useful for sparse texture instructions and image load
intrinsics.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7774>

src/compiler/nir/nir_print.c

@@ -87,7 +87,7 @@ print_register(nir_register *reg, print_state *state)
 }
 
 static const char *sizes[] = { "error", "vec1", "vec2", "vec3", "vec4",
-                               "error", "error", "error", "vec8",
+                               "vec5", "error", "error", "vec8",
                                "error", "error", "error", "error",
                                "error", "error", "error", "vec16"};