msm: camera: enable VFE 4.4 on APQ8084

- Enable the new BF scale stats by correctly programming the
  enable bits. Add the checking to make sure when BF scale
  is enabled (in composite IRQ), BF needs to be enabled too.

- The num_rows field in the image master WR_BUFFER_CFG has increased by
  2 bits and now the 2 MSB bit are programmed in the lower reserved
  bits. The violation status bit meaning is also altered.
  The CGC override registers now have newer bits to enable for
  BPC, LTM and ABF. VBIF and QOS settings are updated.

Change-Id: I815df6615a89f59dc477fe6afdef2b0bcf3b6170
Signed-off-by: Punit Soni <punits@codeaurora.org>