net: phy: micrel: Fix spelling mistake "minimim" -> "minimum"

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

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20230314082315.26532-1-colin.i.king@gmail.com


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