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/ea20_defconfig b/configs/ea20_defconfig
index 3d5a1c4..f38d29c 100644
--- a/configs/ea20_defconfig
+++ b/configs/ea20_defconfig
@@ -4,5 +4,6 @@
 CONFIG_SYS_PROMPT="ea20 > "
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
+CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_SPI_FLASH=y