[jdk8u-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 most files don't exist in jdk8u,
and the copyright years in the following files are different between the repos.
- jdk/test/jdk/internal/platform/docker/GetFreeSwapSpaceSize.java
- jdk/test/jdk/internal/platform/docker/TestGetFreeSwapSpaceSize.java

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Commit messages:
 - Backport 4c9eaddaef83c6ba30e27ae3e0d16caeeec206cb

Changes: https://git.openjdk.org/jdk8u-dev/pull/689/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=689&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8364597
  Stats: 10 lines in 7 files changed: 0 ins; 3 del; 7 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/689.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/689/head:pull/689

PR: https://git.openjdk.org/jdk8u-dev/pull/689