Pass the serial port address to FSP using a UPD value in the MemoryInit API. TEST=Build and run on Galileo Gen2 Change-Id: I86449d80310b7b34ac503ebd2671a4052b080730 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/15079 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>