- make 2 needlessly global functions static

- remove cpia2_setup(): the driver already allows setting parameters
  through module_param(), and there's no reason for having two different
  ways for setting the same parameters
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>