mlxsw: core: fix spelling mistake "temprature" -> "temperature"

There is a spelling mistake in several dev_err messages, fix these.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>