[mips][sched] Put AND, OR, XOR, MOVT_I, and MOVF_I in the same itinerary class...

[mips][sched] Put AND, OR, XOR, MOVT_I, and MOVF_I in the same itinerary class as their non-microMIPS counterparts.

No functional change since both classes have the same InstrItinData definition.

llvm-svn: 199402