[jdk21u-dev] RFR: 8364597: Replace THL A29 Limited with Tencent

[John Jiang]

Please review this backport of `JDK-8364597: Replace THL A29 Limited with Tencent`.
This backport is not clean, because:
- Some files don't exist in jdk21u repo.
  - src/hotspot/share/gc/shenandoah/shenandoahGenerationalControlThread.cpp
  - test/jdk/sun/security/ec/ECDHKeyAgreementParamValidation.java
  - test/hotspot/jtreg/gc/arguments/TestG1CompressedOops.java
- Some files only in jdk21u repo should be also modified.
  - src/hotspot/cpu/x86/macroAssembler_x86_32_exp.cpp
  - src/hotspot/cpu/x86/macroAssembler_x86_32_log.cpp
  - src/hotspot/cpu/x86/macroAssembler_x86_32_pow.cpp 
- Some files have different copyright notes between these repos.
  - src/hotspot/cpu/x86/stubGenerator_x86_64_pow.cpp
  - src/hotspot/cpu/x86/stubGenerator_x86_64_log.cpp
  - src/hotspot/cpu/x86/stubGenerator_x86_64_exp.cpp
  - test/jdk/jdk/internal/platform/docker/TestGetFreeSwapSpaceSize.java
  - test/hotspot/jtreg/compiler/vectorapi/TestIntrinsicBailOut.java
  - test/hotspot/jtreg/compiler/oracle/TestInvalidCompileCommand.java

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Commit messages:
 - Backport 4c9eaddaef83c6ba30e27ae3e0d16caeeec206cb

Changes: https://git.openjdk.org/jdk21u-dev/pull/2138/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2138&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8364597
  Stats: 68 lines in 59 files changed: 0 ins; 9 del; 59 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2138.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2138/head:pull/2138

PR: https://git.openjdk.org/jdk21u-dev/pull/2138