[jdk19] RFR: 8289729: G1: Incorrect verification logic in G1ConcurrentMark::clear_next_bitmap

[Albert Mingkun Yang]

One line change of negating a condition.

Test: hotspot_gc

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Commit messages:
 - Update g1ConcurrentMark.cpp

Changes: https://git.openjdk.org/jdk19/pull/113/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk19&pr=113&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8289729
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk19/pull/113.diff
  Fetch: git fetch https://git.openjdk.org/jdk19 pull/113/head:pull/113

PR: https://git.openjdk.org/jdk19/pull/113