mmc: s5p_sdhci: fix to check proper pinmux id

At sdhci_get_config(), there was wrong condition to check pimux
id, so this patch fixes to check proper pinmux id.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c
index b329bef..ac737e0 100644
--- a/drivers/mmc/s5p_sdhci.c
+++ b/drivers/mmc/s5p_sdhci.c
@@ -152,7 +152,7 @@
 
 	/* Get device id */
 	dev_id = pinmux_decode_periph_id(blob, node);
-	if (dev_id < PERIPH_ID_SDMMC0 && dev_id > PERIPH_ID_SDMMC3) {
+	if (dev_id < PERIPH_ID_SDMMC0 || dev_id > PERIPH_ID_SDMMC3) {
 		debug("MMC: Can't get device id\n");
 		return -EINVAL;
 	}