Update DFFRAM config

openlane/DFFRAM/config.tcl

diff --git a/openlane/DFFRAM/config.tcl b/openlane/DFFRAM/config.tcl
index 3e3f4d2..ebd70c9 100644
--- a/openlane/DFFRAM/config.tcl
+++ b/openlane/DFFRAM/config.tcl
@@ -3,7 +3,10 @@
 set ::env(DESIGN_NAME) DFFRAM
 
 # Change if needed
-set ::env(VERILOG_FILES) $script_dir/../../verilog/rtl/DFFRAM.v
+set ::env(VERILOG_FILES) "\
+	$script_dir/../../verilog/rtl/defines.v\
+	$script_dir/../../verilog/rtl/DFFRAM.v"
+
 set ::env(SYNTH_TOP_LEVEL) 1
 set ::env(SYNTH_READ_BLACKBOX_LIB) 1
 # Fill this
@@ -17,6 +20,7 @@
 set ::env(DIE_AREA) "0 0 750 525"
 
 set ::env(PDN_CFG) $script_dir/pdn.tcl
+set ::env(GLB_RT_MAXLAYER) 5
 
 set ::env(PL_OPENPHYSYN_OPTIMIZATIONS) 0
 set ::env(PL_TARGET_DENSITY) 0.85