Fix GPIO_PADS variable

sky130/openlane/config.tcl

diff --git a/sky130/openlane/config.tcl b/sky130/openlane/config.tcl
index 1cea6cd..cf60c2a 100755
--- a/sky130/openlane/config.tcl
+++ b/sky130/openlane/config.tcl
@@ -30,12 +30,6 @@
 	$::env(PDK_ROOT)/$::env(PDK)/libs.ref/lef/sky130_fd_io/sky130_fd_io.lef\
 	$::env(PDK_ROOT)/$::env(PDK)/libs.ref/lef/sky130_fd_io/sky130_ef_io.lef\
 "
-# sky130_fd_io.v is not parsable by yosys, so it cannot be included it here yet...
-set ::env(GPIO_PADS_VERILOG) "$::env(PDK_ROOT)/$::env(PDK)/libs.ref/verilog/sky130_fd_io/sky130_ef_io.v"
-set ::env(GPIO_PADS_VERILOG) "\
-	$::env(PDK_ROOT)/$::env(PDK)/libs.ref/verilog/sky130_fd_io/sky130_ef_io.v\
-	$::env(PDK_ROOT)/$::env(PDK)/libs.ref/verilog/sky130_fd_io/sky130_ef_io__gpiov2_pad_wrapped.v\
-"
 
 # Optimization library
 set ::env(TECH_LEF_OPT) "$::env(PDK_ROOT)/$::env(PDK)/libs.ref/techLEF/$::env(STD_CELL_LIBRARY_OPT)/$::env(STD_CELL_LIBRARY_OPT)__nom.tlef"
@@ -55,11 +49,8 @@
 	$::env(PDK_ROOT)/$::env(PDK)/libs.ref/sky130_fd_io/lef/sky130_fd_io.lef\
 	$::env(PDK_ROOT)/$::env(PDK)/libs.ref/sky130_fd_io/lef/sky130_ef_io.lef\
 "
-
-set ::env(GPIO_PADS_VERILOG) "\
-	$::env(PDK_ROOT)/$::env(PDK)/libs.ref/sky130_fd_io/verilog/sky130_ef_io.v\
-	$::env(PDK_ROOT)/$::env(PDK)/libs.ref/sky130_fd_io/verilog/sky130_ef_io__gpiov2_pad_wrapped.v\
-"
+# sky130_fd_io.v is not parsable by yosys, so it cannot be included it here just yet...
+set ::env(GPIO_PADS_VERILOG) "$::env(PDK_ROOT)/$::env(PDK)/libs.ref/verilog/sky130_fd_io/sky130_ef_io.v"
 
 # Optimization library
 set ::env(TECH_LEF_OPT) "$::env(PDK_ROOT)/$::env(PDK)/libs.ref/$::env(STD_CELL_LIBRARY_OPT)/techlef/$::env(STD_CELL_LIBRARY_OPT)__nom.tlef"