eth: gpio wol for exphy [1/3]

PD#SWPL-91131

Problem:
add gpio wol function.

Solution:
add gpio wol function.

Verify:
AX201-S928X-REF#50

Change-Id: Ib5c04b7f1fece28763dfec86ca47d4f53956b700
Signed-off-by: Zhuo Wang <zhuo.wang@amlogic.com>
2 files changed