mmc: mmc: correct the logic for setting HS400ES signal voltage

Change the default err value to -EINVAL, make sure the card only
has type EXT_CSD_CARD_TYPE_HS400_1_8V also do the signal voltage
setting when select hs400es mode.

Fixes: commit 1720d354 ("mmc: core: switch to 1V8 or 1V2 for hs400es mode")
Cc: <stable@vger.kernel.org>
Signed-off-by: NHaibo Chen <haibo.chen@nxp.com>
Reviewed-by: NShawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/mmc.c

@@ -1289,7 +1289,7 @@ int mmc_hs400_to_hs200(struct mmc_card *card)
 static int mmc_select_hs400es(struct mmc_card *card)
 {
 	struct mmc_host *host = card->host;
-	int err = 0;
+	int err = -EINVAL;
 	u8 val;
 
 	if (!(host->caps & MMC_CAP_8_BIT_DATA)) {