r6040: make printks consistent with DRV_NAME

This patch fixes some printks which were not prefixed
with DRV_NAME, useful when having multiple cards/drivers
on the system.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed