mb/google/skyrim: Disable keyboard reset

The keyboard reset is not being used on this board, so disable the
functionality.

BUG=None
TEST=Check register values

Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I4a9f8f254dfefcb32a77f558f984bcdd6004d34b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72913
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>

src/mainboard/google/skyrim/Kconfig

@@ -15,6 +15,7 @@ config BOARD_SPECIFIC_OPTIONS
 	def_bool y
 	select AMD_SOC_CONSOLE_UART
 	select BOARD_ROMSIZE_KB_16384
+	select DISABLE_KEYBOARD_RESET_PIN
 	select DISABLE_SPI_FLASH_ROM_SHARING
 	select DRIVERS_GENERIC_GPIO_KEYS
 	select DRIVERS_GENERIC_MAX98357A