media: Revert "media: v4l2: Fix fourcc names for BAYER12P"

This reverts commit 2b016c47.

Wrong patch was merged, revert this first before applying the right
patch.

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