mmc: sd: use HIGH_SPEED_BUS_SPEED in mmc_sd_switch_hs()

Use the well defined HIGH_SPEED_BUS_SPEED macro in mmc_sd_switch_hs()
to make code more readable.
Signed-off-by: NJisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20200410145643.630b0731@xhacker.debianSigned-off-by: NUlf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/sd.c

@@ -376,11 +376,11 @@ int mmc_sd_switch_hs(struct mmc_card *card)
 	if (!status)
 		return -ENOMEM;
 
-	err = mmc_sd_switch(card, 1, 0, 1, status);
+	err = mmc_sd_switch(card, 1, 0, HIGH_SPEED_BUS_SPEED, status);
 	if (err)
 		goto out;
 
-	if ((status[16] & 0xF) != 1) {
+	if ((status[16] & 0xF) != HIGH_SPEED_BUS_SPEED) {
 		pr_warn("%s: Problem switching card into high-speed mode!\n",
 			mmc_hostname(card->host));
 		err = 0;