psp_verstage uses separate printk implementation, which does not include
code to add console output to cbmem.
Add cbmemc_init and cbmemc_tx_byte to add console output to cbmem.
BUG=b:159220781
TEST=build
BRANCH=zork
Change-Id: I63ba5814903565c372dbeb50004565a371dad730
Signed-off-by: Kangheui Won <khwon@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46059
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
326a499f6f