Audio hal VTS: Increase timeout to 5min

The test only take 1.4sec on my device, but seem slower when run by the
server. Increase the timout to 3 time the mesured time to be safe of any
volatily.

Bug: 34170075
Test: this is it

Change-Id: I06392c1b1a92deb78884244761f36d182b880489
Signed-off-by: Kevin Rocard <krocard@google.com>
2 files changed