ps3av: use PS3 video mode ids in autodetect code

It doesn't make much sense to use the PS3AV_CMD_VIDEO_VID_* values in the
autodetection code, just to convert them to PS3 video mode ids afterwards.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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>