[coreboot] [PATCH]refactor crt0.S.lb

[Patrick Georgi]

(retry, the first attempt seems to have been eaten by the list daemon)

Hi,

attached patch splits crt0.S.lb, adds the first part of it as first
element of crt0s, adds the second part as last element of crt0s on romcc
boards (it was guarded with #if CONFIG_USE_DCACHE_RAM==0), renames
crt0_includes.h to crt0.S and runs this, instead of crt0.S.lb through
the assembler.

Minor clean up, but I hope it's clearer what's loaded when with this change.

It passes abuild.

Signed-off-by: Patrick Georgi