Merging r275966:

Merging r275966:
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r275966 | dsanders | 2016-07-19 11:22:19 +0100 (Tue, 19 Jul 2016) | 11 lines

[mips] Recognise the triple used by Debian stretch for mips64el.

Summary:
The triple used for this distribution is mips64el-linux-gnuabi64.

Reviewers: sdardis

Subscribers: sdardis, llvm-commits

Differential Revision: https://reviews.llvm.org/D22406

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_39@276560 91177308-0d34-0410-b5e6-96231b3b80d8