CBMEM: Replace cbmem_initialize() with cbmem_recovery()

The replacement function confirms CBMEM TOC is wiped clean on power
cycles and resets. It also introduces compatibility interface to ease
up transition to DYNAMIC_CBMEM.

Change-Id: Ic5445c5bff4aff22a43821f3064f2df458b9f250
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4668
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)

src/northbridge/intel/nehalem/raminit.c

@@ -1699,7 +1699,7 @@ static void save_timings(struct raminfo *info)
 	train.reg_10b = read_1d0(0x10b, 6);
 
 	/* Save the MRC S3 restore data to cbmem */
-	cbmem_initialize();
+	cbmem_recovery(0);
 	mrcdata = cbmem_add
 	    (CBMEM_ID_MRCDATA, output_len + sizeof(struct mrc_data_container));