msm: camera: Configure VFE for two output mode.

Configure upto two outputs of VFE desginated
as primary and secondary. Depending on the irq,
only send message type primary and secondary and
allow MCTL to interpret these messages.

Change-Id: I25568cb6bba5792658b0570383f64ddb58e21421
Signed-off-by: Kiran Kumar H N <hurlisal@codeaurora.org>
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>