ulab: Incorporate bugfixes (update to tag 0.54.5)

jepler · jepler · commit 4cad5478e6b6 · 2020-10-24T13:16:10.000-05:00
In particular, this closes #3954.
diff --git a/extmod/ulab b/extmod/ulab
@@ -1 +1 @@
-Subproject commit 11a7ecff6d76a02644ff23a734b792afaa615e44
+Subproject commit 7f2c1ae52bee57ce32ac0a74652610cc233d3442
