- move the extended key check in int09, now int15/4f is empty.   I did not see any bug, but maybe some code hooking int15/4f could be   disoriented when receiving extented E0 scancode.
- move the extended key check in int09, now int15/4f is empty.
  I did not see any bug, but maybe some code hooking int15/4f could be
  disoriented when receiving extented E0 scancode.

marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet