freedreno/drm-shim: Fix nr_rings/priorities

Since drm/sched conversion, the kernel will report at least 3.  And
rusticl seems to depend on this.

Signed-off-by: Rob Clark <rob.clark@oss.qualcomm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36644>

src/freedreno/drm-shim/freedreno_noop.c

@@ -103,8 +103,8 @@ msm_ioctl_get_param(int fd, unsigned long request, void *arg)
    case MSM_PARAM_CHIP_ID:
       gp->value = device_info->chip_id;
       return 0;
-   case MSM_PARAM_NR_RINGS:
-      gp->value = 1;
+   case MSM_PARAM_PRIORITIES:
+      gp->value = 3;
       return 0;
    case MSM_PARAM_MAX_FREQ:
       gp->value = 1000000;