[ARM] Add additional targets to divide tests.

The main motivation for these additional targets is to cover the
differences in the instructions available between Thumb2 and Thumb1.

Ths shows up in these test due to the lack of the following in
Thumb1:
- Mulitply and Subtract instruction (mls) - used when calculating
  a remainder.
- Unsigned Muliple Long instruction (umull) - used in certain
  cases when optimising division with a constant.

Differential Revision: https://reviews.llvm.org/D135875