Add support for power management features to better control the LM3560
within the media framework. To achieve the desired PM support, the HWEN
GPIO and VIN power supply were added and configured into power on/off
sequences. Added PM operations along with the PM configuration setup.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>