drivers/net/lan91c96.c: Fix compile warning

Fix this:
lan91c96.c: In function 'lan91c96_initialize':
lan91c96.c:811:12: warning: assignment from incompatible pointer type

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
1 file changed