serial: mctrl_gpio: Drop support for out1-gpios and out2-gpios
The OUT1 and OUT2 pins present on some legacy UARTs are basically GPIOs. It doesn't make much sense to emulate GPIOs using other GPIOs, hence drop support for that. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Reviewed-by: NRichard Genoud <richard.genoud@gmail.com> Reviewed-by: NYegor Yefremov <yegorslists@googlemail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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