davinci: Fix Ethernet driver interface warning

Fixes:
davinci_emac.c: In function 'davinci_emac_initialize':
davinci_emac.c:796:12: warning: assignment from incompatible pointer type [enabled by default]

Tested on da850_am18xxevm

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