submodule(coupledL2): bump coupledL2

jin120811 · jin120811 · commit da992b5bcc10 · 2025-03-10T17:23:20.000+08:00
* fix bitwidth in bank_eq
commitID: 851b04a
diff --git a/coupledL2 b/coupledL2
@@ -1 +1 @@
-Subproject commit 374ff6ec7c87923b0aa8536777f5432ffc772193
+Subproject commit 851b04ad79b8d18cc84c46d13e45da35afb6909e
