decode: notify backend secure flag. [1/1]

decode: notify backend secure flag. [1/1]

PD#SWPL-31671

Problem:
decode provided the secure flag to backend.

Solution:
fill the req state in vfm notify callback.

Verify:
ab301

Change-Id: I2804f606145445b295ae225ba85dc4cff698cac2
Signed-off-by: shihong.zheng <shihong.zheng@amlogic.com>