[coreboot] [PATCH]kconfig and romcc

[Patrick Georgi]

Hi,

attached patches add support for tinybootblock to the generic
Makefile.romccboard.inc, and move dell/s1850 (non-tinybootblock) and
emulation/qemu-x86 (tinybootblock) to use that instead of their own set
of rules.

emulation/qemu-x86 is boot tested.

All romcc-boards use Makefile.romccboard.inc after these patches.

Signed-off-by: Patrick Georgi