wpa_supplicant: Don't return an error when successfully parsing WMM rules

The config file parser previously would fall through into an error if
CONFIG_AP is defined and it hit a wmm_ac_* rule with a valid value. Add
a return to prevent incorrectly printing an error message and returning
a non-zero exit code.

Signed-off-by: Sujay Patwardhan <sujay@eero.com>

wpa_supplicant/config.c

@@ -5140,6 +5140,7 @@ int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
 					   "AC item", line);
 				return -1;
 			}
+			return ret;
 		}
 #endif /* CONFIG_AP */
 		if (line < 0)