common: add CMD_GPIO to Kconfig

Add CMD_GPIO to Kconfig and run tools/moveconfig.py .

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/igep0020_defconfig b/configs/igep0020_defconfig
index e45e83c..b2ce2ad 100644
--- a/configs/igep0020_defconfig
+++ b/configs/igep0020_defconfig
@@ -5,4 +5,5 @@
 CONFIG_SYS_EXTRA_OPTIONS="MACH_TYPE=MACH_TYPE_IGEP0020,BOOT_ONENAND"
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
+CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set