sim/or1k: Regenerate sim

This picks up changes for:

 - new orfpx64a32 spec
 - new unordered instructions
 - documentation and symbol updates

sim/ChangeLog:

	* or1k/cpu.c: Regenerate.
	* or1k/cpu.h: Regenerate.
	* or1k/decode.c: Regenerate.
	* or1k/decode.h: Regenerate.
	* or1k/model.c: Regenerate.
	* or1k/sem-switch.c: Regenerate.
	* or1k/sem.c: Regenerate.