selftests/xsk: Fix spelling mistake "querrying" -> "querying"

There is a spelling mistake in an error message. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/r/20230720104815.123146-1-colin.i.king@gmail.com


Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>