uboot-imx

PXA: Kill last remnants of set_GPIO_mode function

GPIO configuration shall never be done inside a driver, never.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>