arm64: a37xx: defconfig: Enable PINCTRL and GPIO support for ESPRESSOBin board

arm64: a37xx: defconfig: Enable PINCTRL and GPIO support for ESPRESSOBin board

This patch enable the PINCTRL and GPIO support, including the GPIO
command on the Armada 3720 espressobin board.

Reviewed-on: http://vgitil04.il.marvell.com:8080/40746
Tested-by: iSoC Platform CI <ykjenk@marvell.com>
Reviewed-by: Wilson Ding <dingwei@marvell.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Ken Ma <make@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>