Follow-up EVS changes for Hawk

- EvsEnumerator::enumerateDevices() is changed to a static function.
- Corrects a camera configuration in config.json.
- Makes a number of attempts to open a camera as a constant.
- Adds a logcat message to notify the first frame is displayed.
- Removes few log messages.

Bug: 124781506
Bug: 126780934
Change-Id: I87c148873f27314cfdf2b21681ffb288252b6772
Signed-off-by: Changyeon Jo <changyeon@google.com>
4 files changed