This changeset adds the ability to sleep on the device via a
device.sleep() method. This invokes sleep on the target device. This
is useful for situations where the passage of time on the target
device does not match that of the host, e.g., gem5.
This changeset also updates a number of workloads to use this new
sleep method.
For historical reasons audio and video workloads were launching the
browser as part of their setup. This is no longer necessary. Not only
that, since on recent devices the default Android browser is missing,
this causes problems with the workloads. This commit removes the browser
launch.
Added -p option to the list command. This alows filtering results by
supported platforms, e.g.
wa list workloads -p linux
Also adding missing supported_platforms attribute to various extensions.
If an extension does not have this attribute, the assumption is that it
is supported by all available platforms.
