altosdroid: Change voice output around
This makes the voice output depend on the current displayed tab; where
the 'recovery' and 'map' tabs get the same value.
Pad
Reports igniter and GPS status changes
Flight
Report flight state changes and max height after apogee
Report current speed, height and bearing/elevation/range once
every 10 seconds while the rocket is in motion.
Recovery
Report distance and bearing when the location of either the
tracker or the receiver changes by more than 10m, but not more
than once every 10 seconds.
Signed-off-by: Keith Packard <keithp@keithp.com>