Find V4L2 devices from /dev/video*.

Since V4L2CameraHAL now populates its list of cameras,
also added a necessary piece of metadata that was
causing cameraservice to crash.

BUG: 29160300
TEST: Ran on rpi3. HAL finds dev/video* nodes. When a
sym link (/dev/video5 -> /dev/video0) was added, the HAL
correctly did not add a 3rd device.

Change-Id: I95656ac9c062b193c12712b1c73e888bf1f1a961
3 files changed
tree: 62a4b29438a93404a6d6a7177a8ead8d319ea752
  1. modules/