Camera: HAL: Add support for camframetimeout callback API.

The mm-camera layer issues a camframe_timeout callback
when it doesnt receive preview frames from camera driver
(in the timeout period). Add receive_camframetimeout API
in HAL which ensures that additional IOCTL calls are not
issued in such scenario.
Also remove compilation warnings by reordering the
initialization of some variables in the class constructor.
2 files changed