rtlwifi: rtl8192cu: Fix spelling mistake "writting" -> "writing"

There are some spelling mistakes in the comments. Fix it.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220411032458.2517551-1-lv.ruyi@zte.com.cn

drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c

@@ -520,7 +520,7 @@ static void _rtl92cu_init_queue_reserved_page(struct ieee80211_hw *hw,
 		 * 2 out-ep. Remainder pages have assigned to High queue */
 		if (outepnum > 1 && txqremaininpage)
 			numhq += txqremaininpage;
-		/* NOTE: This step done before writting REG_RQPN. */
+		/* NOTE: This step done before writing REG_RQPN. */
 		if (ischipn) {
 			if (queue_sel & TX_SELE_NQ)
 				numnq = txqpageunit;
@@ -539,7 +539,7 @@ static void _rtl92cu_init_queue_reserved_page(struct ieee80211_hw *hw,
 			numlq = ischipn ? WMM_CHIP_B_PAGE_NUM_LPQ :
 				WMM_CHIP_A_PAGE_NUM_LPQ;
 		}
-		/* NOTE: This step done before writting REG_RQPN. */
+		/* NOTE: This step done before writing REG_RQPN. */
 		if (ischipn) {
 			if (queue_sel & TX_SELE_NQ)
 				numnq = WMM_CHIP_B_PAGE_NUM_NPQ;