linux-phytec-ti

net: sxgbe: make local functions static

Make local functions static, because these are used only in this
file.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Byungho An <bh74.an@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>