Make sure installed files have state (rhbz#492947)

Make sure installed files have state (rhbz#492947)
- rpmfsSetState() doesn't get called for skipped files like %ghost and
  %config(noreplace), causing incorrect file state ("no state") getting
  recorded in rpmdb, leading to inapproriate removal/rename on erase, ick
- For TR_ADDED, always default file states to RPMFILE_STATE_NORMAL, fsm
  changes it as necessary for skipped colors and such. Lazy alloc on
  rpmfsSetState() is not correct as rpmfsSetState() might not get called
  at all.
- originally broken by commit 8d6c4b8c95b59f5a71d90c582c2e98f5c7ed7b9d