[smsc911x] undef FLOW if already defined ...

fixes:
drivers/net/smc911x.c:334:1: warning: "FLOW" redefined
In file included from include/asm/blackfin.h:33,
                 from include/asm/system.h:29,
                 from include/asm/bitops.h:33,
                 from include/linux/bitops.h:69,
                 from include/common.h:31,
                 from drivers/net/smc911x.c:29:
include/asm/cpu/defBF561.h:1654:1: warning: this is the location of the previous definition

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

noisy support

change functions containing 'mac' or 'enet' in its name to 'ethaddr'. ...

change the parameter name for ethernet devices to 'ethaddr' aswell.

- coding style ...

- turn endless loop into timeout loop
- remove preliminary debug crap

add blackfin network driver