[jfx11u] RFR: 8220222: build.gradle does not specify clearly the project dependencies

[Ambarish Rapte]

There was a minor merge conflict at line 3933 while cherry picking the commit, otherwise it was clean.
Verified build on all platforms.

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Commit messages:
 - 8220222: build.gradle does not specify clearly the project dependencies

Changes: https://git.openjdk.java.net/jfx11u/pull/48/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jfx11u&pr=48&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8220222
  Stats: 76 lines in 1 file changed: 65 ins; 0 del; 11 mod
  Patch: https://git.openjdk.java.net/jfx11u/pull/48.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx11u pull/48/head:pull/48

PR: https://git.openjdk.java.net/jfx11u/pull/48