[jdk25u] RFR: 8365166: ARM32: missing os::fetch_bcp_from_context implementation

[Boris Ulasevich]

8365166: ARM32: missing os::fetch_bcp_from_context implementation

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Commit messages:
 - Backport 001aaa1e49f2692061cad44d68c9e81a27ea3b98

Changes: https://git.openjdk.org/jdk25u/pull/105/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u&pr=105&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8365166
  Stats: 10 lines in 1 file changed: 8 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk25u/pull/105.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u.git pull/105/head:pull/105

PR: https://git.openjdk.org/jdk25u/pull/105