RFR: 8295968: RISC-V: Rename some assembler intrinsic functions for RVV 1.0. [v2]

[Dingli Zhang]

> Hi,
> 
> Some instructions previously had old assembler notation, but were renamed in RVV1.0[1][2] to be consistent with scalar instructions. We'd better keep the name the same as the new assembler mnemonics.
> 
> [1] https://github.com/riscv/riscv-v-spec/blob/v1.0/v-spec.adoc#152-vector-count-population-in-mask-vcpopm
> [2] https://github.com/riscv/riscv-v-spec/blob/v1.0/v-spec.adoc#151-vector-mask-register-logical-instructions
> 
> Please take a look and have some reviews. Thanks a lot.
> 
> ## Testing:
> 
> - hotspot and jdk tier1 on unmatched board without new failures

Dingli Zhang has updated the pull request incrementally with one additional commit since the last revision:

  Rename more intrinsic functions

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/10878/files
  - new: https://git.openjdk.org/jdk/pull/10878/files/8ff95140..b7b971c1

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10878&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10878&range=00-01

  Stats: 7 lines in 4 files changed: 0 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/10878.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10878/head:pull/10878

PR: https://git.openjdk.org/jdk/pull/10878