RFR: 8258143: Update --release 16 symbol information for JDK 16 build 30 or later

[Joe Darcy]

Updating to the symbol files for JDK 16 b30; change generated with the script 

make/scripts/generate-symbol-data.sh

The change to the java.desktop module looks to be for JDK-8258373.

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Commit messages:
 - 8258143: Update --release 16 symbol information for JDK 16 build 30 or later

Changes: https://git.openjdk.java.net/jdk/pull/1954/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1954&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8258143
  Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1954.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1954/head:pull/1954

PR: https://git.openjdk.java.net/jdk/pull/1954