[vector-unstable] Integrated: Merge panama-vector:master

[Sandhya Viswanathan]

Merging vector-unstable branch with master

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Commit messages:
 - Merge
 - Merge panama-vector:master
 - Merge panama-vector:master
 - Update conf
 - Manual merge with default
 - [vector] Remove extra whitespace to remove git warning message
 - [vector] Cleanup: Remove extra whitespace to pass jcheck and unused file
 - Manual merge with default
 - Update aarch64-asmtest.py and regenerate code for assembler_aarch64.cpp
 - Manual merge with default
 - ... and 639 more: https://git.openjdk.java.net/panama-vector/compare/55d760d4...6a3b1e77

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.java.net/panama-vector/pull/12/files
  Stats: 16 lines in 2 files changed: 0 ins; 11 del; 5 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/12.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/12/head:pull/12

PR: https://git.openjdk.java.net/panama-vector/pull/12