Fix coding guideline warnings

This patch fixes some coding guideline warnings reported by the checkpatch
script. Only files related to upcoming feature development have been fixed.

Change-Id: I26fbce75c02ed62f00493ed6c106fe7c863ddbc5
diff --git a/services/std_svc/psci/psci_main.c b/services/std_svc/psci/psci_main.c
index 86df9a1..04ef10e 100644
--- a/services/std_svc/psci/psci_main.c
+++ b/services/std_svc/psci/psci_main.c
@@ -94,7 +94,7 @@
 	is_power_down_state = psci_get_pstate_type(power_state);
 
 	/* Sanity check the requested suspend levels */
-	assert (psci_validate_suspend_req(&state_info, is_power_down_state)
+	assert(psci_validate_suspend_req(&state_info, is_power_down_state)
 			== PSCI_E_SUCCESS);
 
 	target_pwrlvl = psci_find_target_suspend_lvl(&state_info);
@@ -217,7 +217,7 @@
 	 * The only error cpu_off can return is E_DENIED. So check if that's
 	 * indeed the case.
 	 */
-	assert (rc == PSCI_E_DENIED);
+	assert(rc == PSCI_E_DENIED);
 
 	return rc;
 }