CBMEM: Always have early initialisation

Assume EARLY_CBMEM_INIT=y everywhere and remove option from Kconfig.

If romstage does not make the cbmem_initialize() call, features like
COLLECT_TIMESTAMPS and early CBMEM_CONSOLE will execute during
romstage, but that data will get lost as no CAR migration is
executed.

Change-Id: I5615645ed0f5fd78fbc372cf5c3da71a3134dd85
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3917
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>

src/northbridge/intel/sandybridge/raminit.c

@@ -58,7 +58,6 @@ static void save_mrc_data(struct pei_data *pei_data)
 {
 	u16 c1, c2, checksum;
 
-#if CONFIG_EARLY_CBMEM_INIT
 	struct mrc_data_container *mrcdata;
 	int output_len = ALIGN(pei_data->mrc_output_len, 16);
 
@@ -84,7 +83,6 @@ static void save_mrc_data(struct pei_data *pei_data)
 
 	mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data,
 						    mrcdata->mrc_data_size);
-#endif
 
 	/* Save the MRC seed values to CMOS */
 	cmos_write32(CMOS_OFFSET_MRC_SEED, pei_data->scrambler_seed);