driver: mmc: adopt 32 bit addr in fsl_esdhc for CONFIG_PPC

PowerPC supports 32 bit address.
So adopt 32 bit addr in fsl_esdhc for CONFIG_PPC.
Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>

drivers/mmc/fsl_esdhc.c

@@ -1462,8 +1462,11 @@ static int fsl_esdhc_probe(struct udevice *dev)
 	addr = dev_read_addr(dev);
 	if (addr == FDT_ADDR_T_NONE)
 		return -EINVAL;
-
+#ifdef CONFIG_PPC
+	priv->esdhc_regs = (struct fsl_esdhc *)lower_32_bits(addr);
+#else
 	priv->esdhc_regs = (struct fsl_esdhc *)addr;
+#endif
 	priv->dev = dev;
 	priv->mode = -1;
 	if (data) {