rtlwifi: Add HAL_DEF_WOWLAN case to *_get_hw() routines

Only rtl8821ae implements WOWLAN; however, the other drivers may receive
a call requesting information about this mode. The other drivers need to
ignore the request rather than logging that the default branch of the
switch statement has been reached.

Reported by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/rtl8192ce/hw.c

@@ -141,6 +141,8 @@ void rtl92ce_get_hw_reg(struct ieee80211_hw *hw, u8 variable, u8 *val)
 
 		break;
 		}
+	case HAL_DEF_WOWLAN:
+		break;
 	default:
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 			 "switch case %#x not processed\n", variable);