Fix PDN

openlane/user_project_wrapper/config.tcl

diff --git a/openlane/user_project_wrapper/config.tcl b/openlane/user_project_wrapper/config.tcl
index 6d5581d..92a1539 100755
--- a/openlane/user_project_wrapper/config.tcl
+++ b/openlane/user_project_wrapper/config.tcl
@@ -30,6 +30,9 @@
 set ::env(DESIGN_NAME) user_project_wrapper
 #section end
 
+set ::env(FP_PDN_CORE_RING_VOFFSET) 12.45
+set ::env(FP_PDN_CORE_RING_HOFFSET) 12.45
+
 # User Configurations
 
 ## Source Verilog Files