Replace SERIAL_CPU_INIT with PARALLEL_CPU_INIT

Lines with 'select SERIAL_CPU_INIT' where redundant with the
default being yes. Since there is no 'unselect SERIAL_CPU_INIT'
possibility, invert the default and rename option.

This squelches Kconfig warnings about unmet dependencies.

Change-Id: Iae546c56006278489ebae10f2daa627af48abe94
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5700
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/cpu/intel/haswell/Kconfig

@@ -22,16 +22,13 @@ config CPU_SPECIFIC_OPTIONS
 	#select AP_IN_SIPI_WAIT
 	select TSC_SYNC_MFENCE
 	select CPU_INTEL_FIRMWARE_INTERFACE_TABLE
+	select PARALLEL_CPU_INIT
 	select PARALLEL_MP
 
 config BOOTBLOCK_CPU_INIT
 	string
 	default "cpu/intel/haswell/bootblock.c"
 
-config SERIAL_CPU_INIT
-	bool
-	default n
-
 config SMM_TSEG_SIZE
 	hex
 	default 0x800000