msm: camera: Fix for properly configuring AXI bus when using dual_enabled mode

When lp_mode=0 and dual_enabled=1, the msm_camio_bus_scale_cfg API is not
called in axi_start() i.e. the AXI bus is not configured properly

Change-Id: Ifca9ca97ea21b8442ae801802e38d7d98433ba97
CRs-Fixed: 458802
Signed-off-by: Krupal Divvela <kdivvela@codeaurora.org>