arm/dt: camera: Add LED flash support for camera

For 8974 fluid, pm8941 2A flash is attached to S5K3L1YX sensor.
Add LED flash device node in sensor device nodes and parse its properties
in sensor driver.

Change-Id: Iaefd5c3f1ccdaa81ebd85ae173b33b10a83827f3
Signed-off-by: Sreesudhan Ramakrish Ramkumar <srramku@codeaurora.org>
7 files changed