QCamera2: Enable sensor HDR support in HAL3.

Issue:
sensor HDR is enabled only in video mode for HAL3.

Fix:
Add sensor HDR support for snapshot mode as well.

Use below setprop to enable sensor HDR :
adb shell setprop persist.camera.sensor.hdr <value>

where value is one of cam_sensor_hdr_type_t
0 -> off
1 -> IN_SENSOR
2 -> ZIGZAG
3 -> STAGGERED

CRs-Fixed: 1075030
Change-Id: I6d22ab8e26c38a8cc3b3cd4119313fffad9e4e90
3 files changed