msm: camera: ife: validate the ife bw num paths

If ife bandwidth number of paths configuration is zero then do not
proceed. Number of bandwidth paths should be minimum one and
should not be greater than max value.

CRs-Fixed: 2602752
Change-Id: I1f28e2c2558ace983c12957b0610e6cd5755c17f
Signed-off-by: Wyes Karny <wkarny@codeaurora.org>