staging: media: ipu3: fix spelling mistakes

Fix three minor spelling/grammar issues:
	chunck -> chunk
	procotol -> protocol
	follow -> following

Signed-off-by: Hridesh MG <hridesh699@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>