Improved proc_dp_verify_sync() to be able to handle c_sync_period=1.

libraries/base/dp/tb/vhdl/tb_dp_pkg.vhd

@@ -2044,7 +2044,7 @@ PACKAGE BODY tb_dp_pkg IS
   BEGIN
     IF rising_edge(clk) THEN
       IF verify_en='1' THEN
-        v_expected_sync := TO_UINT(bsn(c_bsn_w-1 DOWNTO 0)) MOD c_sync_period = c_sync_offset;
+        v_expected_sync := (TO_UINT(bsn(c_bsn_w-1 DOWNTO 0))-c_sync_offset) MOD c_sync_period = 0;
         -- Check for unexpected sync
         IF sync='1' THEN
           ASSERT v_expected_sync = TRUE