msm: camera: ife: Do not acquire IFE2 for HVX usecase in lagoon

In Lagoon camera there is no HVX support for IFE2.
Therefore at acquire time while acquiring IFE2 we are checking
if dsp_mode (HVX usecase) is set or not. If it is set then we are
failing the acquire.

CRs-Fixed: 2663455
Change-Id: I86235d8bcb9861db1d2570a59615ed227ee1b1eb
Signed-off-by: Wyes Karny <wkarny@codeaurora.org>