Move mapping tables to struct and prevent OOB array access that was crashing the APs during CAR initialization. Change-Id: I9e2554b50ad60a8d02ef4bd3fbee6fddb238d83f Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: http://review.coreboot.org/8310 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@gmail.com> Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>