delete pseudo inst for lockcacheline, unlockcacheline, add unsetpid
Merge branch 'master' of http://github.com/kongziyun/RPCache

Conflicts:
	Gem5/src/cpu/base_dyn_inst.hh
	Gem5/src/cpu/o3/lsq_unit.hh
	Gem5/src/cpu/static_inst.hh
	Gem5/src/mem/packet.hh
delete pseudo inst for lock unlock, add unsetpid