misc: s4mu: Support iMX93 with Sentinel MU

Support iMX93 communicate with Sentinel

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/misc/sentinel/s4mu.c b/drivers/misc/sentinel/s4mu.c
index 121a810..18aea27 100644
--- a/drivers/misc/sentinel/s4mu.c
+++ b/drivers/misc/sentinel/s4mu.c
@@ -219,6 +219,7 @@
 
 static const struct udevice_id imx8ulp_mu_ids[] = {
 	{ .compatible = "fsl,imx8ulp-mu" },
+	{ .compatible = "fsl,imx93-mu-s4" },
 	{ }
 };