Merge pull request The-OpenROAD-Project#3603 from Pinata-Consulting/export-sucker-punch

ihp-sg13g2/riscv32i: USE_FILL fix

Author: maliberty

flow/designs/ihp-sg13g2/riscv32i/config.mk

@@ -5,7 +5,7 @@ export PLATFORM    = ihp-sg13g2
 export VERILOG_FILES = $(sort $(wildcard $(DESIGN_HOME)/src/$(DESIGN_NICKNAME)/*.v))
 export SDC_FILE      = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/constraint.sdc
 
-export USE_FILL 1
+export USE_FILL = 1
 
 export CORE_UTILIZATION = 35
 export PLACE_DENSITY_LB_ADDON = 0.2