apps: cam: Print control enum values more nicely

Now that enum names can be obtained from ControlId, use that information
to print out the list of supported enum values in --list-controls.

Example output (with a dummy AwbMode ControlInfo added to vimc):

$ cam -c 1 --list-controls
Using camera platform/vimc.0 Sensor B as cam0
Control: AwbMode:
  - AwbTungsten (2)
  - AwbFluorescent (3)
  - AwbDaylight (5)
Control: Brightness: [-1.000000..1.000000]
Control: Contrast: [0.000000..2.000000]
Control: Saturation: [0.000000..2.000000]

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

0 files changed, 0 insertions, 0 deletions