Some small A780 progress

I've continued my work on porting the ts07.10 from Motorola's mux_cli to 2.6.x. It now compiles, although I have no idea whether it actually works as expected.

Since Linux 2.5/2.6 has undergone quite some sophisticated changes in both scheduling/context area (no more struct task_queue) as well as the tty layer (dynamically allocated and managed flip buffers, etc), the task has been a bit more challenging than the usual copy+paste+minor_fixup task.

I'll also be releasing the -ezx6 kernel soon (2.6.17 based) in the next couple of days, where I plan to merge mickey's various driver bits (LED, backlight, keypad fixes) and the above-mentioned mux_cli.