[ARM] Add some more missing T1 opcodes for the peephole optimisier

This adds a few extra Thumb1 opcodes to improve the peephole opimisers
ability to remove redundant cmp instructions. tADC and tSBC require
a small fixup to prevent MOVS being moved past the instruction, giving
the wrong flags.

Differential Revision: https://reviews.llvm.org/D58281

llvm-svn: 354791