selftests: net: ioam: expect support for Queue depth data

The IOAM queue-depth data field was added a few weeks ago,
but the test unit was not updated accordingly.

Reported-by: kernel test robot <[e-mail]>
Fixes: b63c5478e9cb ("ipv6: ioam: Support for Queue depth data field")
Signed-off-by: Justin Iurman <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

tools/testing/selftests/net/ioam6_parser.c

···
 		*p += sizeof(__u32);
 	}
 
-	if (ioam6h->type.bit6) {
-		if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff)
-			return 1;
+	if (ioam6h->type.bit6)
 		*p += sizeof(__u32);
-	}
 
 	if (ioam6h->type.bit7) {
 		if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff)