read_xed_db.py: fix RM and MOD recognition
read_xed_db.py: fix RM and MOD recognition

Change-Id: I37fa818ea4621db2e5cce12655cec0e7b23acf1f
(cherry picked from commit aa5e099954d6a5efc001b5b91595a084bb8bf314)

intelxed/xed,intelxed/xed,intelxed/xed,intelxed/xed