[Hexagon] Adding indexed store new-value variants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225007 91177308-0d34-0410-b5e6-96231b3b80d8
[mips][microMIPS] Relocate with symbol for micromips symbols
Differential Revision: http://reviews.llvm.org/D6796


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225008 91177308-0d34-0410-b5e6-96231b3b80d8