Overwrote mgmt_core.v.gz from the source

- the previous one had a weird binary header and footer (gzip issue?)
diff --git a/verilog/gl/mgmt_core.v.gz b/verilog/gl/mgmt_core.v.gz
index f26ccea..dcdce46 100644
--- a/verilog/gl/mgmt_core.v.gz
+++ b/verilog/gl/mgmt_core.v.gz
Binary files differ