Update DevKit Tools.gmk.patch to use Centos7 vault

[andrew-m-leonard]

Fixes https://github.com/adoptium/ci-jenkins-pipelines/issues/1089

Update Tools.gmk.patch to use Centos7 "vault", and also import noarch GPG key.

Test builds with PR:

• https://ci.adoptium.net/job/build-scripts/job/utils/job/devkit/job/gcc-11.3.0/job/devkit-gcc-11.3.0-linux-x64/56/
• https://ci.adoptium.net/job/build-scripts/job/utils/job/devkit/job/gcc-11.3.0/job/devkit-gcc-11.3.0-linux-aarch64/72/

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