firmware: qcom: scm: Change initcall to subsys

The patch changes the initcall for SCM to use subsys_initcall
instead of arch_initcall.  This corrects the order so that we don't
probe defer when trying to get clks which causes issues later when
the spm driver makes calls to qcom_set_warm_boot_addr().

The order became an issue due to the changes to use arch_initcall_sync
for of_platform_default_populate_init().
Signed-off-by: Andy Gross <andy.gross@linaro.org>

drivers/firmware/qcom_scm.c

@@ -415,7 +415,7 @@ static int __init qcom_scm_init(void)
 	return platform_driver_register(&qcom_scm_driver);
 }
 
-arch_initcall(qcom_scm_init);
+subsys_initcall(qcom_scm_init);
 
 static void __exit qcom_scm_exit(void)
 {