UPSTREAM: x86: Move coreboot over to use the coreboot UART

Use this UART to improve the compatibility of U-Boot when used as a
coreboot payload.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
(cherry picked from commit b7c1e67a70b13fb8dbcb3b00532c2d2236afff49)
Change-Id: I62e53d43042bd84cc65d9565872b53061e5f7008
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/u-boot/+/2113273
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
1 file changed