msm: camera: isp: Update bus width properly

Do not read the hw register to update the bus width.
Update register with stored height and user space given width
Update the tfe core irq command register after clear the registers.

CRs-Fixed: 2545590
Change-Id: I3fd9e0ce4319cd19b94e9c83fa63aab37f26027e
Signed-off-by: Ravikishore Pampana <rpampana@codeaurora.org>