ARM64: remove buggy REV16 pattern.

The 32-bit pattern is still valid: 0123 -> 3210 -> 1032.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206172 91177308-0d34-0410-b5e6-96231b3b80d8
AArch64: add newline to end of test files.

Should be no other change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206174 91177308-0d34-0410-b5e6-96231b3b80d8
ARM64: specify full triple in tests to pacify Windows.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206175 91177308-0d34-0410-b5e6-96231b3b80d8