[OpenJDK 2D-Dev] RFR: 8264143 Lanai: RenderPerfTest.BgrSwBlitImage has artefacts on apple M1

[Denis Konoplev]

There was no code to check num of work items in compute shader.
Also, I've replaced four similar shaders.

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Commit messages:
 - 8264143: Lanai: RenderPerfTest.BgrSwBlitImage has artefacts on apple M1

Changes: https://git.openjdk.java.net/jdk/pull/3368/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3368&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8264143
  Stats: 73 lines in 3 files changed: 29 ins; 26 del; 18 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3368.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3368/head:pull/3368

PR: https://git.openjdk.java.net/jdk/pull/3368