RFR: 8255240: Mobile builds need to exclude some modules

[Johan Vos]

exclude some modules that are not relevant on Mobile.
Fix for JDK-8255240

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Commit messages:
 - exclude some modules that are not relevant on Mobile.

Changes: https://git.openjdk.java.net/mobile/pull/10/files
 Webrev: https://webrevs.openjdk.java.net/?repo=mobile&pr=10&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8255240
  Stats: 18 lines in 2 files changed: 18 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/mobile/pull/10.diff
  Fetch: git fetch https://git.openjdk.java.net/mobile pull/10/head:pull/10

PR: https://git.openjdk.java.net/mobile/pull/10