timestamps: Stash early timestamps in CAR_GLOBAL

Change-Id: I87b454c748cf885491d5b38bfe53a2ec0e9f38c5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3910
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Aaron Durbin <adurbin@google.com>

src/mainboard/emulation/qemu-i440fx/romstage.c

@@ -49,10 +49,10 @@ void main(unsigned long bist)
 	//dump_pci_devices();
 
 	cbmem_was_initted = !cbmem_initialize();
-#if CONFIG_COLLECT_TIMESTAMPS
+
 	timestamp_init(rdtsc());
+	timestamp_sync();
 	timestamp_add_now(TS_START_ROMSTAGE);
-#endif
 #if CONFIG_CONSOLE_CBMEM
 	/* Keep this the last thing this function does. */
 	cbmemc_reinit();

src/mainboard/emulation/qemu-q35/romstage.c

@@ -51,10 +51,10 @@ void main(unsigned long bist)
 	//dump_pci_devices();
 
 	cbmem_was_initted = !cbmem_initialize();
-#if CONFIG_COLLECT_TIMESTAMPS
+
 	timestamp_init(rdtsc());
+	timestamp_sync();
 	timestamp_add_now(TS_START_ROMSTAGE);
-#endif
 #if CONFIG_CONSOLE_CBMEM
 	/* Keep this the last thing this function does. */
 	cbmemc_reinit();