[vectorIntrinsics] RFR: 8264811: Fix inconsistence of m4 and ad files after merge

[Ningsheng Jian]

The latest vectorIntrinsics merge [1] has some missing changes in  aarch64_neon_ad.m4. This patch fixes that and also regenerates aarch64_sve.ad.  

[1] https://github.com/openjdk/panama-vector/pull/58

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Commit messages:
 - 8264811: Fix inconsistence of m4 and ad files after merge

Changes: https://git.openjdk.java.net/panama-vector/pull/59/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=59&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8264811
  Stats: 10 lines in 2 files changed: 0 ins; 10 del; 0 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/59.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/59/head:pull/59

PR: https://git.openjdk.java.net/panama-vector/pull/59