mmc: sdhci: Fix HISPD bit handling for MMC HS 52MHz mode

Set High Speed Enable bit for MMC High Speed (52MHz) mode.

Fixes: f12341a95295 ("mmc: sdhci: Fix HISPD bit handling")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index c6b250b..1389c18 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -682,6 +682,7 @@
 	if (!no_hispd_bit) {
 		if (mmc->selected_mode == MMC_HS ||
 		    mmc->selected_mode == SD_HS ||
+		    mmc->selected_mode == MMC_HS_52 ||
 		    mmc->selected_mode == MMC_DDR_52 ||
 		    mmc->selected_mode == MMC_HS_200 ||
 		    mmc->selected_mode == MMC_HS_400 ||