RFR: 8324124: RISC-V: implement _vectorizedMismatch intrinsic

[Yuri Gaevsky]

Hello All,

Please review these changes to enable the __vectorizedMismatch_ intrinsic on RISC-V platform with RVV instructions supported.

Thank you,
-Yuri Gaevsky

**Correctness checks:**
  hotspot/jtreg/compiler/{intrinsic/c1/c2}/ under QEMU-8.1 with RVV v1.0.0 and -XX:TieredStopAtLevel=1/2/3/4.

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Commit messages:
 - 8324124: RISC-V: implement _vectorizedMismatch intrinsic

Changes: https://git.openjdk.org/jdk/pull/17750/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17750&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8324124
  Stats: 168 lines in 5 files changed: 162 ins; 5 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/17750.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17750/head:pull/17750

PR: https://git.openjdk.org/jdk/pull/17750