Merging r265134:

Merging r265134:
------------------------------------------------------------------------
r265134 | slthakur | 2016-04-01 17:25:33 +0530 (Fri, 01 Apr 2016) | 9 lines

[MIPS][LLVM-MC] Fix JR encoding for MIPSR6 ISA

Summary: The assembler was picking the wrong JR variant because the pre-R6 one was still enabled at R6.

Author: nitesh.jain
Reviewers: vkalintiris, dsanders
Subscribers: dsanders, llvm-commits, mohit.bhakkad, sagar, bhushan, jaydeep
Differential: D18387

------------------------------------------------------------------------

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_38@270675 91177308-0d34-0410-b5e6-96231b3b80d8