RFR: 8343214: Fix encoding errors in APX New Data Destination Instructions Support [v5]

[Srinivas Vamsi Parasa]

> The goal of this PR is to fix instruction encoding errors for some of the instructions which support the APX New Data Destination (NDD) and No Flags (NF) features (added in [JDK-8329035](https://bugs.openjdk.org/browse/JDK-8329035))
> 
> The correctness of the encoding is verified by comparing to the reference encoding by GCC using an automated tool (https://github.com/openjdk/jdk/pull/21795)

Srinivas Vamsi Parasa has updated the pull request incrementally with one additional commit since the last revision:

  remove map4 enum; replace with comment

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/21770/files
  - new: https://git.openjdk.org/jdk/pull/21770/files/0f404dbd..1563aa2c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21770&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21770&range=03-04

  Stats: 22 lines in 2 files changed: 0 ins; 1 del; 21 mod
  Patch: https://git.openjdk.org/jdk/pull/21770.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21770/head:pull/21770

PR: https://git.openjdk.org/jdk/pull/21770