[jdk16] RFR: 8259043: More Zero architectures need linkage with libatomic

[Aleksey Shipilev]

JDK-8256831 added the Zero linkage with libatomic for MIPS, but there are other 32-bit Zero platforms that need the same kind of treatment.

Additional testing:
 - [x]  linux-mipsel-zero-fastdebug build

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Commit messages:
 - 8259043: More Zero architectures need linkage with libatomic

Changes: https://git.openjdk.java.net/jdk16/pull/76/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk16&pr=76&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8259043
  Stats: 12 lines in 1 file changed: 6 ins; 0 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk16/pull/76.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk16 pull/76/head:pull/76

PR: https://git.openjdk.java.net/jdk16/pull/76