[code-reflection] RFR: Integrate HIP backend to bldr infrastructure.

[iotamudelta]

jextract fails in the presence of HIP on OpenCL/OpenGL - disable those for now if HIP is present.

While there, catch up to the reflection include change.

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Commit messages:
 - Integrate HIP backend to bldr infrastructure.

Changes: https://git.openjdk.org/babylon/pull/296/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=296&range=00
  Stats: 18 lines in 6 files changed: 10 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/babylon/pull/296.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/296/head:pull/296

PR: https://git.openjdk.org/babylon/pull/296