arm: socfpga: Add support for Terasic SoCkit board

Add support for Terasic SoCkit, which is CycloneV based board.
The board can boot either from SD/MMC or QSPI. Ethernet is also
supported.

Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/configs/socfpga_sockit_defconfig b/configs/socfpga_sockit_defconfig
new file mode 100644
index 0000000..01723c5
--- /dev/null
+++ b/configs/socfpga_sockit_defconfig
@@ -0,0 +1,26 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SOCFPGA=y
+CONFIG_TARGET_SOCFPGA_CYCLONE5=y
+CONFIG_TARGET_SOCFPGA_TERASIC_SOCKIT=y
+CONFIG_DEFAULT_DEVICE_TREE="socfpga_cyclone5_sockit"
+CONFIG_SPL=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+CONFIG_OF_CONTROL=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_USE_4K_SECTORS=n
+CONFIG_DM_ETH=y
+CONFIG_NETDEVICES=y
+CONFIG_ETH_DESIGNWARE=y
+CONFIG_DM_GPIO=y
+CONFIG_DWAPB_GPIO=y
+CONFIG_SPL_DM=y
+CONFIG_SPL_MMC_SUPPORT=y
+CONFIG_DM_SEQ_ALIAS=y
+CONFIG_SPL_SIMPLE_BUS=y
+CONFIG_DM_SPI=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPL_SPI_SUPPORT=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_ADDR=0x00800000
+CONFIG_SYS_MALLOC_F_LEN=0x2000