iris: devinfo->no_hw is unlikely

This is one of those places where we can very safely add
likely/unlikely.

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Rohan Garg <rohan.garg@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37559>

src/gallium/drivers/iris/i915/iris_kmd_backend.c

@@ -387,7 +387,7 @@ i915_batch_submit(struct iris_batch *batch)
    }
 
    int ret = 0;
-   if (!batch->screen->devinfo->no_hw) {
+   if (likely(!batch->screen->devinfo->no_hw)) {
       do {
          ret = intel_ioctl(batch->screen->fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf);
       } while (ret && errno == ENOMEM);

src/gallium/drivers/iris/xe/iris_kmd_backend.c

@@ -408,7 +408,7 @@ xe_batch_submit(struct iris_batch *batch)
       .syncs = (uintptr_t)syncs,
       .num_syncs = sync_len,
    };
-   if (!batch->screen->devinfo->no_hw) {
+   if (likely(!batch->screen->devinfo->no_hw)) {
       ret = intel_ioctl(iris_bufmgr_get_fd(bufmgr), DRM_IOCTL_XE_EXEC, &exec);
 
       if (ret) {