Update scb_top_sim.vhd. given to the unused input ljd signals, '0' value for...

Update scb_top_sim.vhd. given to the unused input ljd signals, '0' value for the simulator to not complain

top/bare_top/scb_top_sim.vhd

@@ -189,7 +189,7 @@ begin  -- rtl
       clk_dmtd_i          => clk_dmtd_i,
 --      clk_sys_i           => clk_sys_i,
       clk_aux_i           => clk_aux_i,
-      clk_ext_mul_i       => (others=>'0'),
+      clk_ext_mul_i       => '0',
       clk_ext_mul_locked_i=> (others=>'1'),
       cpu_wb_i            => cpu_wb_in,
       cpu_wb_o            => cpu_wb_out,
@@ -225,10 +225,10 @@ begin  -- rtl
       i2c_sda_oen_o   => i2c_sda_oen,
       i2c_sda_o       => i2c_sda_out,
       i2c_sda_i       => i2c_sda_in,
-      ljd_loopback_i  => open,
-      ljd_osc_freq_i  => open,
-      ljd_pll_miso_i  => open,
-      ljd_pll_locked_i=> open
+      ljd_loopback_i  => '0',
+      ljd_osc_freq_i  => (others=>'0'),
+      ljd_pll_miso_i  => '0',
+      ljd_pll_locked_i=> '0'
       );
 
   gen_phys : for i in 0 to g_num_ports-1 generate