eMMC: add FFU operation interface. [1/1]

PD#SWPL-196902

Problem:
Need to support flash FFU function.

Solution:
add FFU operation interface.

Verify:
S7_BH201

Change-Id: Ifd8084a8c727eb84357391f7a437e6a25a329157
Signed-off-by: jinbiao <jinbiao.ou@amlogic.com>
5 files changed