Rename/move file(s)

Change-Id: Ia03651341cb36e97c61ebca2e473b084db4134b7
diff --git a/hdl/verilog/common/dffr.sv b/hdl/verilog/common/dff.sv
similarity index 100%
rename from hdl/verilog/common/dffr.sv
rename to hdl/verilog/common/dff.sv