M68k: Replace floating point by integer constants (found by sparse)
Affected drivers:
  - Amiga frame buffer
  - ATI Mach64 frame buffer
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>