Fix these:
cm4008.c: In function 'board_eth_init':
cm4008.c:79: warning: implicit declaration of function 'ks8695_eth_initialize'

cm41xx.c: In function 'board_eth_init':
cm41xx.c:79: warning: implicit declaration of function 'ks8695_eth_initialize'

While we are at it, sort include list in netdev.h

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Greg Ungerer <greg.ungerer@opengear.com>