sna: Check if the kernel reports a tiling-stride less than our request

Looks like a bug has snuck in somewhere in our set-tiling path. Since it
exists, try to workaround it whilst it is root caused.

Reported-by: Adric Blake <promarbler14@gmail.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=103025#c9
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

src/sna/kgem.c

@@ -488,7 +488,7 @@ restart:
 		     bo->tiling, tiling,
 		     bo->pitch, stride,
 		     set_tiling.tiling_mode == tiling));
-		return set_tiling.tiling_mode == tiling;
+		return set_tiling.tiling_mode == tiling && bo->pitch >= stride;
 	}
 
 	err = errno;