mmc: snps_sdhci: Add sdhci driver support for TH1520 SoC

Add support for DesignWare SDHCI host controller on Alibaba TH1520 SoC

Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
Tested-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index 3881762..f4fdf15 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -732,6 +732,18 @@
 
 	  If unsure, say N.
 
+config MMC_SDHCI_SNPS
+	bool "Synopsys DesignWare SDHCI controller"
+	depends on MMC_SDHCI
+	depends on DM_MMC
+	help
+	  Support for DesignWare SDHCI host controller on Alibaba TH1520 SoC.
+	  This is a highly configurable and programmable, high performance
+	  Mobile Storage Host Controller (MSHC) with AXI as the bus interface
+	  for data transfer.
+
+	  If unsure, say N.
+
 config MMC_SDHCI_STI
 	bool "SDHCI support for STMicroelectronics SoC"
 	depends on MMC_SDHCI && OF_CONTROL