supermicro/x11: enable COMB via LPC

Allow to use the 2nd COM port of the AST2400 which can be also used via
IPMI/serial-over-lan.

Change-Id: I6f9c85b1f5428d3c3acf7a2f20296134c4611b1e
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51759
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>

src/mainboard/supermicro/x11-lga1151-series/Kconfig

@@ -14,6 +14,7 @@ config BOARD_SUPERMICRO_BASEBOARD_X11_LGA1151_SERIES
 	select SUPERIO_ASPEED_HAS_UART_DELAY_WORKAROUND
 	select NO_FADT_8042
 	select DRIVERS_UART_8250IO
+	select SOC_INTEL_COMMON_BLOCK_LPC_COMB_ENABLE
 
 if BOARD_SUPERMICRO_BASEBOARD_X11_LGA1151_SERIES