* gas/h8300/ffxx1.s: Add .word 0 at the end to eliminate uncertainty as to

* gas/h8300/ffxx1.s: Add .word 0 at the end to eliminate uncertainty as to
whether there should be trailing bytes in the output file.
* gas/h8300/ffxx1.d: Adjust reloc values to permit an addend value of
0x00000000ffffffff on 64-bit hosts.  (I'm not sure if this is correct.)  End
with "..." to match trailing zero bytes.