ENGR00272541 IPUv3 IC: Split Downsizing overflow for size greater than 1024

For downscaling, it is possible that downscaler output is greater
than 1024. Added a function, calc_split_resize_coeffs, based upon
_calc_resize_coeffs to calculate resizing and downscaling coefficients.

In ipu_ic.c, checks for the range of *_resize_ratio are no longer needed.
 Non split cases will always have  *_resize_ratio of zero.

In ipu_device, additional checks are needed to check for an error from
ipu_calc_stripes_sizes if calc_split_resize_coeffs fails.

Signed-off-by: Oliver Brown <oliver.brown@freescale.com>
(cherry picked from commit bdbaccc90e26cbacf2897cad411902b6cf1bca36)

Conflicts:
	drivers/mxc/ipu3/ipu_ic.c
ENGR00274166 - Split mode has artifacts

- Need to use different multiple and index parameters for vertical
and horizontal stripes
- Use correct multiple and index based upon pixel format
- Allow input crop and size to be larger than width by upto 16 pixels

Signed-off-by: Oliver Brown <oliver.brown@freescale.com>
(cherry picked from commit 5ccc316b87b462575d1964b230bb24bf46f8b6c2)

Conflicts:
	drivers/mxc/ipu3/ipu_device.c
ENGR00290635-2 IPUv3 stripe:Fix a build warning

This patch fixes the following build warning by
initializing some local variables:
drivers/mxc/ipu3/ipu_calc_stripes_sizes.c: In function ‘ipu_calc_stripes_sizes’:
drivers/mxc/ipu3/ipu_calc_stripes_sizes.c:393:3: warning: ‘difwr’ may be used uninitialized in this function [-Wuninitialized]
drivers/mxc/ipu3/ipu_calc_stripes_sizes.c:393:3: warning: ‘onw’ may be used uninitialized in this function [-Wuninitialized]
drivers/mxc/ipu3/ipu_calc_stripes_sizes.c:393:3: warning: ‘inw’ may be used uninitialized in this function [-Wuninitialized]

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit f3062175336e217dc6651761682344af88a6039c)
(cherry picked from commit b932a3771133195290b56f947264f74223bd4a4a)
ENGR00290579 IPUv3: Fix split mode warnings

Changed alignement for planar formats back to 16 pixels.

Signed-off-by: Oliver Brown <oliver.brown@freescale.com>
(cherry picked from commit e5be4002a9f87d6ff7d32359be61995e026f1062)