[coreboot] [PATCH 2/2] libpayload: support color over serial

[Ulf Jordan]

This patch adds support for color output over serial from 
libpayload/tinycurses. It assumes that the ACS patch has been applied 
first.

Build and run tested (coreinfo+libpayload+coreboot-v3 in QEMU) the same 
way as the ACS patch.

/ulf