Add uart controller to chipset.cb and leave it off by default.
Turn uart0 on for console for mainboards.
BUG=none
TEST=builds and boot into OS
Signed-off-by: Ivy Jian <ivy_jian@compal.corp-partner.google.com>
Change-Id: Iaeb7fea4b92bd89331c7ae7c1c000f8d9961fe9e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52287
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>