configs: evb-ast2[56]00: Enable GPIO control

Build in the driver for the Aspeed GPIO controller and turn on the
`gpio` shell command.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/configs/evb-ast2600_defconfig b/configs/evb-ast2600_defconfig
index 17d6dcb..f541c69 100644
--- a/configs/evb-ast2600_defconfig
+++ b/configs/evb-ast2600_defconfig
@@ -11,6 +11,7 @@
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_ENV_SIZE=0x10000
+CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="ast2600-evb"
 CONFIG_SPL_SERIAL=y
 CONFIG_SPL_STACK_R_ADDR=0x83000000
@@ -39,6 +40,7 @@
 CONFIG_SPL_RAM_SUPPORT=y
 CONFIG_SPL_RAM_DEVICE=y
 CONFIG_HUSH_PARSER=y
+CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_DHCP=y
@@ -58,6 +60,7 @@
 CONFIG_DM_HASH=y
 CONFIG_HASH_ASPEED=y
 CONFIG_ASPEED_ACRY=y
+CONFIG_ASPEED_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_MISC=y
 CONFIG_SPL_MISC=y