V4L/DVB: V4L - vpfe capture - source for ISIF driver on DM365

This is the source file for ISIF driver on DM365.  ISIF driver is equivalent
to CCDC driver on DM355 and DM644x. This driver is tested for YUV capture from
TVP514x driver. This patch contains the header files required for this driver.
Reviewed-by: Nori, Sekhar <nsekhar@ti.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Murali Karicheri <mkaricheri@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>