imx: mach: correct SCU API usage

The return value is int type, not sc_err_t(u8), correct the usage.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/mach-imx/imx8/fdt.c b/arch/arm/mach-imx/imx8/fdt.c
index 02b3ee5..491c8bb 100644
--- a/arch/arm/mach-imx/imx8/fdt.c
+++ b/arch/arm/mach-imx/imx8/fdt.c
@@ -110,7 +110,7 @@
 
 	err = sc_rm_set_master_sid(-1, rsrc, sid);
 	debug("set_master_sid rsrc=%d sid=0x%x err=%d\n", rsrc, sid, err);
-	if (err != SC_ERR_NONE) {
+	if (err) {
 		if (!check_owned_resource(rsrc)) {
 			printf("%s rsrc[%d] not owned\n", __func__, rsrc);
 			return -1;