Added "Passed" print to dev,nlTest,simple tests

runtime/tests/dev/vx_dev_main.c

@@ -101,9 +101,9 @@ int main()
 	// Second Kernel Call
 	vx_spawn_warps(numWarps, numThreads, mat_add_kernel, &arguments);
 	vx_print_mat(z, arguments.numRows, arguments.numColums);
+	vx_print_str("Passed!\n");
 
-
-	return 1;
+	return 0;
 }
 
 

runtime/tests/nlTest/vx_nl_main.c

@@ -18,7 +18,10 @@ int main()
 	vx_tmc(1);
 
 
-	printf("printf: Newlib Main %d\n", 456);
+	vx_print_str("Newlib Main ");
+	vx_print_hex(456);
+	vx_print_str(" \n");
+	vx_print_str("Passed!\n");
 
 	return 0;
 }

runtime/tests/simple/main.c

@@ -143,6 +143,6 @@ int main()
 		}
 		vx_print_str("\n");
 	}
-
+	vx_print_str("Passed!\n");
 	return 0;
 }