mmc: sdhci: Read cd-gpio from devicetree

This patch reads cd-gpio property from devicetree
Signed-off-by: NT Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NPeng Fan <peng.fan@nxp.com>

drivers/mmc/sdhci.c

@@ -590,6 +590,12 @@ static int sdhci_set_ios(struct mmc *mmc)
 static int sdhci_init(struct mmc *mmc)
 {
 	struct sdhci_host *host = mmc->priv;
+#if CONFIG_IS_ENABLED(DM_MMC) && CONFIG_IS_ENABLED(DM_GPIO)
+	struct udevice *dev = mmc->dev;
+
+	gpio_request_by_name(dev, "cd-gpio", 0,
+			     &host->cd_gpio, GPIOD_IS_IN);
+#endif
 
 	sdhci_reset(host, SDHCI_RESET_ALL);