lib/bootblock: Provide mechanism to pass in an early timestamp

This is useful, for example, in the bootblock, when a timestamp is
available which predates the call to main() in lib/bootblock.c

Change-Id: I17bb0add9f2d8721504b2e534dd6904d1201989c
Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com>
Reviewed-on: https://review.coreboot.org/14862
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2 files changed