mmc: dw_mmc: add support for ARM64

There are upcoming ARM64 SoCs with dw_mmc host controller.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 882bfe5..2d6fbdd 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -580,7 +580,7 @@
 config MMC_DW
 	tristate "Synopsys DesignWare Memory Card Interface"
 	depends on HAS_DMA
-	depends on ARC || ARM || MIPS || COMPILE_TEST
+	depends on ARC || ARM || ARM64 || MIPS || COMPILE_TEST
 	help
 	  This selects support for the Synopsys DesignWare Mobile Storage IP
 	  block, this provides host support for SD and MMC interfaces, in both