fbdev: consolidate common drawing functions into a header file

Consolidate common drawing functions into a single header file.

Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --cc drivers/video/cfbcopyarea.c
Simple merge

diff --cc drivers/video/cfbfillrect.c
Simple merge

diff --cc drivers/video/fb_draw.h
Simple merge

diff --cc drivers/video/syscopyarea.c
Simple merge

diff --cc drivers/video/sysfillrect.c
Simple merge