CIMx: Allow #define LEGACY_FREE overrides

For legacy free AMD systems, the #define LEGACY_FREE cannot
currently be overridden.  This patch allows the platform_cfg.h
to override that.  (I know we want to get away from that, but
for now...)

Also allow BIOS_SIZE to be overridden on SB700 cimx based
platforms.

Change-Id: I570115248bcbc686062bfb66acb56208240b847a
Signed-off-by: Martin L Roth <martin@se-eng.com>
Reviewed-on: http://review.coreboot.org/1018
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
3 files changed