video: s3c-fb: add the bit definitions for CSC EQ709 and EQ601

Add the bit definitions for CSC EQ709 and EQ601.  These definitons are
used to control the CSC parameter such as equation 709 and equation 601.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>