Add EOR(register) and EOR(immediate) to ARM integrated assembler.

Also factor out code to process arguments for data operations into
new method Arm32::Assembler32::emitType01().

BUG= https://code.google.com/p/nativeclient/issues/detail?id=4334
R=stichnot@chromium.org

Review URL: https://codereview.chromium.org/1406153011 .
6 files changed