M68k: Define inline functions before use (found by sparse)
Affected drivers:
  - Atari floppy
  - Amiga A2232 serial
  - Amiga Fastlane SCSI
  - Mac/PowerMac Valkyrie 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>