[vectorIntrinsics] RFR: 8261267: Math vector stubs are not called from jitted code

[Sandhya Viswanathan]

The svml math vector stubs intrinsification is failing and the stubs are not being called from jitted code.
The LibraryCallKit::inline_vector_nary_operation needs to be updated to call the svml math vector stubs where available.
Also the MachCallRuntimeNode::ret_addr_offset() in the ad file needs to be adjusted for vector calls.

Please review.

Best Regards,
Sandhya

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Commit messages:
 - 8261267: Math vector stubs are not called from jitted code

Changes: https://git.openjdk.java.net/panama-vector/pull/35/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=35&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8261267
  Stats: 8 lines in 2 files changed: 3 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/35.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/35/head:pull/35

PR: https://git.openjdk.java.net/panama-vector/pull/35