Staging: rtlwifi: base: Modified the line ending with a parenthesis

This patch fixes the "Lines should not end with a '('" warning reported by
checkpatch.pl script. The line containing 'rtl_mrate_idx_to_arfr_id' function
previously ended with '(', which did not conform to the linux kernel
coding style.
Signed-off-by: Sohil Ladhani <supertakumi86@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtlwifi/base.c

@@ -685,8 +685,7 @@ static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
 	}
 }
 
-u8 rtl_mrate_idx_to_arfr_id(
-	struct ieee80211_hw *hw, u8 rate_index,
+u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
 			    enum wireless_mode wirelessmode)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);