media: staging/intel-ipu3: Add css pipeline programming

This provides helper library to be used by v4l2 level to program
imaging pipelines and control the streaming.
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>