fix: Error flag stuck at zero

* Reset polarity was wrong

hdl/top_ccn_packeter.vhd

@@ -151,7 +151,7 @@ begin
 
     p_flags:process(aclk, aresetn)
     begin
-        if areset = '0' then
+        if aresetn = '0' then
             f_err_timeout   <= '0';
             f_err_seq       <= '0';
         elsif rising_edge(aclk) then

hdl/top_ccn_unpacketer.vhd

@@ -164,7 +164,7 @@ begin
 
     p_flags:process(aclk, aresetn)
     begin
-        if areset = '0' then
+        if aresetn = '0' then
             f_err_pid           <= '0';
             f_err_mac_len       <= '0';
             f_err_mac_dst       <= '0';