configs: Add DDR Kconfig support for Arria 10

This patch enables DDR Kconfig support for Arria 10.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Dinh Nguyen <dinguyen@kernel.org>
diff --git a/drivers/ddr/altera/Kconfig b/drivers/ddr/altera/Kconfig
index 021ec1d..2b28a97 100644
--- a/drivers/ddr/altera/Kconfig
+++ b/drivers/ddr/altera/Kconfig
@@ -1,5 +1,5 @@
 config ALTERA_SDRAM
 	bool "SoCFPGA DDR SDRAM driver"
-	depends on TARGET_SOCFPGA_GEN5
+	depends on TARGET_SOCFPGA_GEN5 || TARGET_SOCFPGA_ARRIA10
 	help
 	  Enable DDR SDRAM controller for the SoCFPGA devices.