NTFS: Use ntfs_malloc_nofs_nofail() in runlist.c::ntfs_runlists_merge()

      in the two critical regions.  This means we no longer need to
      panic() when the allocation fails as it now cannot fail.

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>

diff --cc fs/ntfs/ChangeLog
Simple merge

diff --cc fs/ntfs/runlist.c
Simple merge