[code-reflection] Integrated: Fixup babylon location property and remove spirv backend from default

[Gary Frost]

I mistakenly left my fork name as the babylon location. 

Also SPIRV backend removed from default build. 

See comment in hat/backends/pom.xml to allow SPIRV to build.

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Commit messages:
 - Fixup babylon location property and remove spirv backend from default

Changes: https://git.openjdk.org/babylon/pull/144/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=144&range=00
  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/babylon/pull/144.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/144/head:pull/144

PR: https://git.openjdk.org/babylon/pull/144