media: fimc-is: constify fimc_formats array

Pointers to elements of the static array "fimc_formats" with "struct
fimc_fmt" are passed all around to various calls, but all of them do not
modify pointed data. Constify the pointers everywhere which at the end
allows to make static array "fimc_formats" const itself.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

media: fimc-is: constify several pointers in function arguments

Several functions do not modify pointed structure, thus the pointer can
point to const data for additional safety and self-documenting intention
of the function.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

media: fimc-is: drop unused fimc_vidioc_enum_fmt_mplane()

Function fimc_vidioc_enum_fmt_mplane() is not defined, so drop its
declaration from the header.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

media: avoid use of 'videobuf'

The term 'videobuf' typically refers to the old videobuf version 1
framework. Avoid using this word in drivers that are converted to
vb2.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

media: platform: rename exynos4-is/ to samsung/exynos4-is/

As the end goal is to have platform drivers split by vendor,
rename exynos4-is/ to samsung/exynos4-is/.

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>