Add tests that BlockLimits VPD matches the AtomicWrite16 support

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>

test-tool/iscsi-test-cu.c

@@ -385,6 +385,7 @@ static CU_TestInfo tests_writeatomic16[] = {
 	{ (char *)"ZeroBlocks", test_writeatomic16_0blocks },
 	{ (char *)"WriteProtect", test_writeatomic16_wrprotect },
 	{ (char *)"DpoFua", test_writeatomic16_dpofua },
+	{ (char *)"VPD", test_writeatomic16_vpd },
 	CU_TEST_INFO_NULL
 };