net: bcmgenet: re-align multiple lines correctly

checkpatch.pl flagged a lot of "CHECK: Alignment should match open
parenthesis" checks, fix all of them to make the driver neater. While
at it fix some obvious typos and re-arrange some of the lines to avoid
going over 80 columns.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>