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/mainboard/ibm/e325/Kconfig

@@ -7,6 +7,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SOUTHBRIDGE_AMD_AMD8111
 	select SOUTHBRIDGE_AMD_AMD8131
 	select SUPERIO_NSC_PC87366
+	select PARALLEL_CPU_INIT
 	select HAVE_OPTION_TABLE
 	select HAVE_PIRQ_TABLE
 	select HAVE_MP_TABLE
@@ -54,10 +55,6 @@ config HT_CHAIN_UNITID_BASE
 	hex
 	default 0x1
 
-config SERIAL_CPU_INIT
-	bool
-	default n
-
 config IRQ_SLOT_COUNT
 	int
 	default 12

src/mainboard/ibm/e326/Kconfig

@@ -7,6 +7,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SOUTHBRIDGE_AMD_AMD8111
 	select SOUTHBRIDGE_AMD_AMD8131
 	select SUPERIO_NSC_PC87366
+	select PARALLEL_CPU_INIT
 	select HAVE_OPTION_TABLE
 	select HAVE_PIRQ_TABLE
 	select HAVE_MP_TABLE
@@ -54,10 +55,6 @@ config HT_CHAIN_UNITID_BASE
 	hex
 	default 0x1
 
-config SERIAL_CPU_INIT
-	bool
-	default n
-
 config IRQ_SLOT_COUNT
 	int
 	default 12