Merging r217254:

------------------------------------------------------------------------
r217254 | tomatabacu | 2014-09-05 16:43:21 +0100 (Fri, 05 Sep 2014) | 9 lines

[mips] Rename data members and member functions in MipsAssemblerOptions.

Summary: Use the naming convention from the LLVM Coding Standards.

Reviewers: dsanders

Reviewed By: dsanders

Differential Revision: http://reviews.llvm.org/D4972
------------------------------------------------------------------------

llvm-svn: 232054