scmi: cosmetic: reorder include files

Reorder include files in expected order.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
diff --git a/drivers/firmware/scmi/mailbox_agent.c b/drivers/firmware/scmi/mailbox_agent.c
index 8043e2c..ea35e7e 100644
--- a/drivers/firmware/scmi/mailbox_agent.c
+++ b/drivers/firmware/scmi/mailbox_agent.c
@@ -7,11 +7,11 @@
 
 #include <common.h>
 #include <dm.h>
-#include <dm/device_compat.h>
 #include <errno.h>
 #include <mailbox.h>
 #include <scmi_agent.h>
 #include <scmi_agent-uclass.h>
+#include <dm/device_compat.h>
 #include <dm/devres.h>
 #include <linux/compat.h>