Fix valid EA modes for EOR
Fix valid EA modes for EOR

This commit brings 100% parity between emu and disassembler, meaning
that all opcodes that can be executed, can also be disassembled, and
that no invalid opcodes are recognized as valid.

The assembler can also correctly assemble all instructions that can be
disassembled/executed, but still accepts and assembles more addressing
modes than some instructions actually allows.

marhel/r68k,marhel/r68k