[PATCH] fbcmap.c: mark structs const or __read_mostly

[PATCH] fbcmap.c: mark structs const or __read_mostly

- Mark the default colormaps read-only, as nobody should be allowed to
  modify them

- Additionally mark color values as __read_mostly since they will only be
  modified (very seldom) by fb_invert_cmaps()

- Add named C99-initializers in fb_cmap structs and use the ARRAY_SIZE()
  macro

Signed-off-by: Helge Deller <[email protected]>
Acked-by: James Simmons <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>