[GISel]: Add missing opcodes for overflow intrinsics

[GISel]: Add missing opcodes for overflow intrinsics

https://reviews.llvm.org/D51197

Currently, IRTranslator (and GISel) seems to be arbitrarily picking
which overflow intrinsics get mapped into opcodes which either have a
carry as an input or not.
For intrinsics such as Intrinsic::uadd_with_overflow, translate it to an
opcode (G_UADDO) which doesn't have any carry inputs (similar to LLVM
IR).

This patch adds 4 missing opcodes for completeness - G_UADDO, G_USUBO,
G_SSUBE and G_SADDE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@340865 91177308-0d34-0410-b5e6-96231b3b80d8