Add entries for EmulateMovRdImm() -- "MOV (immediate)" -- Encodings T1 & T2 into g_thumb_opcodes

table.  Modify EmulateInstructionARM::EvaluateInstruction() so that if the cpsr has changed
during evaluate instruction, we flush out the change into m_inst_cpsr in preparation for the next
instruction.

llvm-svn: 125524