Update OpenROAD submodule back to upstream, instead of my fork

kcaisley · kcaisley · commit de370f62711d · 2025-08-18T18:14:20.000+02:00
Signed-off-by: kcaisley &lt;kcaisley@uni-bonn.de&gt;
diff --git a/tools/OpenROAD b/tools/OpenROAD
@@ -1 +1 @@
-Subproject commit bd66065cde161389e2a17acd8f6510dd6d793440
+Subproject commit 6ff4ea2d3f1f07b7ba9c634dc738df2757bf816a
