isx005: fix torch camera callback

Change-Id: I0f92ff194e2d83d3d6a15585eba7c218dfa7a1b7
isx005: fix camcorder flash toggle

Change-Id: Ie5835d87d7beee68edf13d0ed28ff38eac28ad37
isx005: enable touch to focus

Change-Id: I4c462f1d6758e43cb89bbfc752800237d41c9934