fix for duplicate compilation fpnew

Created by: dawidzim

Hey!

RTLSRC_PKG		:= $(RTLSRC_HOME)/rtl/fpnew/src/fpnew_pkg.sv \

and

RTLSRC_FPNEWPKG     := $(RTLSRC_HOME)/rtl/fpnew/src/fpu_div_sqrt_mvp/hdl/defs_div_sqrt_mvp.sv

so I filtered out this files