drivers/net/qlge: Use netif_printk helpers

Convert QPRINTK macros to netif_<level> equivalents.
Expands and standardizes the logging message output.
Removes __func__ from most logging messages.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>