RFR: 8343497: Missing DEF_STATIC_JNI_OnLoad in libjimage and libsaproc native libraries

[Jiangli Zhou]

Please review this trivial fix that adds missing DEF_STATIC_JNI_OnLoad in libjimage and libsaproc native libraries. Thanks.

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Commit messages:
 - Add DEF_STATIC_JNI_OnLoad to libjimage and libsaproc native libraries.Q

Changes: https://git.openjdk.org/jdk/pull/21861/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21861&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8343497
  Stats: 8 lines in 2 files changed: 8 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21861.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21861/head:pull/21861

PR: https://git.openjdk.org/jdk/pull/21861