updated fail_db.txt
Merge pull request #887 from ncos/knc-backend-merge

Updated fail_db.txt to remove new passes fails
Fix for rev. 220741. LinkModiles emits error by itself
Fix for missing declaration of IntrinsicInst
Fix for load/store i16
Merge pull request #890 from Vsevolod-Livinskij/fix_for_trunk

Fix for trunk
Merge pull request #892 from Vsevolod-Livinskij/knc_header_fix

Fix for load/store i16