OV12870 IQ Tuning final delivery 2017-06-23_Phase3.2

Flash issue:

 * We can’t control power of torch (pre-flash) – this results in wrong
   statistics for AEC

 * As a workaround - power of flash was reduced significantly so it does
   not overexpose anymore

 * After issue with torch (pre-flash) is fixed, flash should be retuned

FPIIM-955

Change-Id: I3f7774d24911302c686c837122c135ab38bc628d
1 file changed