imx: scu_api: add implementation of sc_pm_reset_reason

Add implementation of sc_pm_reset_reason() call for obtaining
reset reason.

Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
diff --git a/include/firmware/imx/sci/sci.h b/include/firmware/imx/sci/sci.h
index f832982..7d8499f 100644
--- a/include/firmware/imx/sci/sci.h
+++ b/include/firmware/imx/sci/sci.h
@@ -75,6 +75,7 @@
 int sc_pm_cpu_start(sc_ipc_t ipc, sc_rsrc_t resource, sc_bool_t enable,
 		    sc_faddr_t address);
 void sc_pm_reboot(sc_ipc_t ipc, sc_pm_reset_type_t type);
+int sc_pm_reset_reason(sc_ipc_t ipc, sc_pm_reset_reason_t *reason);
 sc_bool_t sc_pm_is_partition_started(sc_ipc_t ipc, sc_rm_pt_t pt);
 int sc_pm_resource_reset(sc_ipc_t ipc, sc_rsrc_t resource);
 
@@ -385,6 +386,11 @@
 {
 }
 
+static inline int sc_pm_reset_reason(sc_ipc_t ipc, sc_pm_reset_reason_t *reason)
+{
+	return -EOPNOTSUPP;
+}
+
 static inline int sc_seco_v2x_build_info(sc_ipc_t ipc, u32 *version, u32 *commit)
 {
 	return -EOPNOTSUPP;