[jdk11u-dev] RFR: 8252412: [macos11] system dynamic libraries removed from filesystem

[Sergey Chernyshev]

Hi all,

This this a clean backport of commit [c836da38](https://github.com/openjdk/jdk/commit/c836da387e2803e3f4eaa8918650a3ebcda8b216) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Martin Buchholz on 27 Jan 2021 and was reviewed by Jiangli Zhou and Valerie Peng.

The change is low risk: instead of checking for presence of the file, its parent directory is being checked. This allows smartcard readers support library to be loaded on macOS Big Sur and more recent versions.

Thanks!

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Commit messages:
 - Backport c836da387e2803e3f4eaa8918650a3ebcda8b216

Changes: https://git.openjdk.org/jdk11u-dev/pull/3158/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=3158&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8252412
  Stats: 19 lines in 1 file changed: 18 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/3158.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/3158/head:pull/3158

PR: https://git.openjdk.org/jdk11u-dev/pull/3158