[jdk17u-dev] RFR: 8282583: Update BCEL md to include the copyright notice

[Goetz Lindenmaier]

I backport this for parity with 17.0.4-oracle.

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Commit messages:
 - Backport 8478173d837113bf603aadb614badd461f474250

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/276/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=276&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282583
  Stats: 8 lines in 1 file changed: 0 ins; 3 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/276.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/276/head:pull/276

PR: https://git.openjdk.java.net/jdk17u-dev/pull/276