libvideorender: CB2 add a key to get crtc index of weston [1/1]

PD#SWPL-144424

Problem:
add a key to get crtc index of weston

Solution:
add a key to get crtc index of weston

Verify:
ap222

Change-Id: I1079cf6b7bc1eabf14c188d3492841ea54713173
Signed-off-by: fei.deng <fei.deng@amlogic.com>
5 files changed