nb/x4x/raminit.c: Remove ME locking code

This code ought not to run if ME is disabled. It also prohibits
writing to some GMCH regs like GGC bit1.

Intel ® 4 Series Chipset Family datasheet refers to this as
"ME stolen Memory lock" without actually describing this

Change-Id: Iaa8646e535e13c44c010ccd434a5af954cf7dfbc
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18513
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
1 file changed