since commit f1e321001d, the UART init
should be in bootblock_mainboard_early_init() which runs before
console init. (see src/lib/bootblock.c)
Change-Id: Ib00afdd6e81e7689fbd743c8a5f547d424896d71
Reviewed-on: https://review.coreboot.org/13448
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
e10d07e336