wifi: rtw89: 8852c: rfk: correct miscoding delay of DPK

Using mdelay() can work well, but calibration causes too much time. Use
proper udelay() to get shorter time and the same result.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220930133318.6335-2-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/rtw8852c_rfk.c

@@ -1666,7 +1666,7 @@ static u8 _dpk_one_shot(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
 
 	ret = read_poll_timeout_atomic(rtw89_phy_read32_mask, val, val == 0x55,
 				       10, 20000, false, rtwdev, 0xbff8, MASKBYTE0);
-	mdelay(10);
+	udelay(10);
 	rtw89_phy_write32_clr(rtwdev, R_NCTL_N1, MASKBYTE0);
 
 	rtw89_debug(rtwdev, RTW89_DBG_RFK,