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>

arch/arm/mach-socfpga/Kconfig

@@ -10,6 +10,7 @@ config TARGET_SOCFPGA_ARRIA5
 config TARGET_SOCFPGA_ARRIA10
 	bool
 	select SPL_BOARD_INIT if SPL
+	select ALTERA_SDRAM
 
 config TARGET_SOCFPGA_CYCLONE5
 	bool

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.