pm3fb: possible cleanups

- remove the empty pm3fb_setup() and corresponding code

- pm3fb_init() can become static

[adaplas]
- retain call to fb_get_options() for global options

Signed-off-by: Adrian Bunk <bunk@stusta.de>
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>