mb/intel/ehlcrb: Select LPSS console by default

Select `INTEL_LPSS_UART_FOR_CONSOLE` to allow using PCH UART 2 as
coreboot console. Also, simplify `UART_FOR_CONSOLE` defaults.

Signed-off-by: Lean Sheng Tan <lean.sheng.tan@intel.com>
Change-Id: I853777116fc541e5dc31f3ca8673f8bf66c7c9e1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56423
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/intel/elkhartlake_crb/Kconfig

@@ -12,6 +12,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select HAVE_SPD_IN_CBFS
 	select HAVE_ACPI_RESUME
 	select HAVE_ACPI_TABLES
+	select INTEL_LPSS_UART_FOR_CONSOLE
 	select SOC_INTEL_ELKHARTLAKE
 
 config MAINBOARD_DIR
@@ -40,7 +41,6 @@ config VBOOT
 
 config UART_FOR_CONSOLE
 	int
-	default 2 if INTEL_LPSS_UART_FOR_CONSOLE
-	default 0
+	default 2
 
 endif