Code cleanup in finsig_dryos.c.
Update finsig_dryos.c to find movie_status for newer cameras & fix bug in active_viewport_buffer detection on some cameras.
- a470: correct mistakes in 100e and 101b boot.c
- a470: use the print LED (blue) as the "debug" and "remote status" LED instead of the green one
- s80: enable USB remote
- status upgrade from alpha to beta for the a420, ixus30_sd200, ixus110_sd960, s80 ports