cpu/x86: Default to PARALLEL_MP selected

Change-Id: I9833c4f6c43b3e67f95bd465c42d7a5036dff914
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55196
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/soc/intel/skylake/Kconfig

@@ -43,7 +43,6 @@ config CPU_SPECIFIC_OPTIONS
 	select INTEL_GMA_ADD_VBT if RUN_FSP_GOP
 	select IOAPIC
 	select MRC_SETTINGS_PROTECT
-	select PARALLEL_MP
 	select PARALLEL_MP_AP_WORK
 	select PLATFORM_USES_FSP2_0
 	select PM_ACPI_TIMER_OPTIONAL