add back basic placement

golden_config.tcl

diff --git a/golden_config.tcl b/golden_config.tcl
index cc7ab71..5d6d339 100644
--- a/golden_config.tcl
+++ b/golden_config.tcl
@@ -31,6 +31,7 @@
 set ::env(FP_SIZING) absolute
 set ::env(DIE_AREA) "0 0 150 170"
 set ::env(FP_CORE_UTIL) 55
+set ::env(PL_BASIC_PLACEMENT) {1}
 
 set ::env(FP_IO_HLENGTH) 2
 set ::env(FP_IO_VLENGTH) 2