Exit cleanly from testbench on success

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>

countzero_tb.vhdl

@@ -109,7 +109,6 @@ begin
             end loop;
         end loop;
 
-        assert false report "end of test" severity failure;
-        wait;
+	std.env.finish;
     end process;
 end behave;

dcache_tb.vhdl

@@ -133,8 +133,6 @@ begin
 	wait until rising_edge(clk);
 	wait until rising_edge(clk);
 
-        assert false report "end of test" severity failure;
-        wait;
-
+	std.env.finish;
     end process;
 end;

divider_tb.vhdl

@@ -547,7 +547,6 @@ begin
             end loop;
         end loop;
 
-        assert false report "end of test" severity failure;
-        wait;
+        std.env.finish;
     end process;
 end behave;

fpga/soc_reset_tb.vhdl

@@ -124,7 +124,6 @@ begin
 
 	wait for clk_period;
 
-        assert false report "end of test" severity failure;
-        wait;
+        std.env.finish;
     end process;
 end behave;

icache_tb.vhdl

@@ -147,8 +147,6 @@ begin
 
         i_out.req <= '0';
 
-        assert false report "end of test" severity failure;
-        wait;
-
+        std.env.finish;
     end process;
 end;

multiply_tb.vhdl

@@ -247,7 +247,7 @@ begin
                 report "bad mulli expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
         end loop;
 
-        assert false report "end of test" severity failure;
+        std.env.finish;
         wait;
     end process;
 end behave;

plru_tb.vhdl

@@ -103,7 +103,6 @@ begin
 	wait for clk_period;
 	report "lru:" & to_hstring(lru);
 
-        assert false report "end of test" severity failure;
-        wait;
+        std.env.finish;
     end process;
 end;

rotator_tb.vhdl

@@ -291,7 +291,6 @@ begin
 		report "bad extswsli expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
         end loop;
 
-        assert false report "end of test" severity failure;
-        wait;
+        std.env.finish;
     end process;
 end behave;

wishbone_bram_tb.vhdl

@@ -169,7 +169,6 @@ begin
         wait until rising_edge(clk);
         assert w_in.ack = '0';
 
-        assert false report "end of test" severity failure;
-        wait;
+        std.env.finish;
     end process;
 end behave;