update DFFRAM config to include DFFRAMBB.v

openlane/DFFRAM/config.tcl

diff --git a/openlane/DFFRAM/config.tcl b/openlane/DFFRAM/config.tcl
index ebd70c9..f543e21 100644
--- a/openlane/DFFRAM/config.tcl
+++ b/openlane/DFFRAM/config.tcl
@@ -5,7 +5,8 @@
 # Change if needed
 set ::env(VERILOG_FILES) "\
 	$script_dir/../../verilog/rtl/defines.v\
-	$script_dir/../../verilog/rtl/DFFRAM.v"
+	$script_dir/../../verilog/rtl/DFFRAM.v\
+	$script_dir/../../verilog/rtl/DFFRAMBB.v"
 
 set ::env(SYNTH_TOP_LEVEL) 1
 set ::env(SYNTH_READ_BLACKBOX_LIB) 1