net: pse-pd: pd692x0: Fix spelling mistake "availables" -> "available"

There is a spelling mistake in a dev_err message. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Kory Maincent <Kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20240709105222.168306-1-colin.i.king@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>