drm-shim: report support for timeline semaphores

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8934>

src/drm-shim/device.c

@@ -166,6 +166,7 @@ drm_shim_ioctl_get_cap(int fd, unsigned long request, void *arg)
    switch (gc->capability) {
    case DRM_CAP_PRIME:
    case DRM_CAP_SYNCOBJ:
+   case DRM_CAP_SYNCOBJ_TIMELINE:
       gc->value = 1;
       return 0;