Android: Increase timeout for adb to 10s

On some machines adb takes a longer than 5s to finish. The reasons for
that are unknown.

Change-Id: I949dc40b8f407aa98be0456df47a9ebe88e230a5
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>