pinctrl: amd: Drop pull up select configuration

pinctrl-amd currently tries to program bit 19 of all GPIOs to select
either a 4kΩ or 8hΩ pull up, but this isn't what bit 19 does.  Bit
19 is marked as reserved, even in the latest platforms documentation.

Drop this programming functionality.

Tested-by: Jan Visser <starquake@linuxeverywhere.org>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230705133005.577-4-mario.limonciello@amd.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>