bootblock: Add TS_START_BOOTBLOCK and TS_END_BOOTBLOCK

Change-Id: I5617e5d9b7238ad7a894934910a3eae742d2d22d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36594
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/lib/bootblock.c

@@ -51,6 +51,8 @@ static void bootblock_main_with_timestamp(uint64_t base_timestamp,
 				      timestamps[i].entry_stamp);
 	}
 
+	timestamp_add_now(TS_START_BOOTBLOCK);
+
 	bootblock_soc_early_init();
 	bootblock_mainboard_early_init();
 
@@ -65,6 +67,8 @@ static void bootblock_main_with_timestamp(uint64_t base_timestamp,
 	bootblock_soc_init();
 	bootblock_mainboard_init();
 
+	timestamp_add_now(TS_END_BOOTBLOCK);
+
 	run_romstage();
 }