exceeds 92 symbols (91 valid symbols + \0). It is better to catch that
issue on earlier stage, i.e. fail the build with an appropriate message.
For developer's build, show warning message instead of failing the build
(in the latter case, as developers do not usually care about build properties
too much).
Change-Id: I03ced7b486d43a71b1921e0a9c48b43aa30727c7
Tungsten is the first device we have done since post_process_props.py
and UsbDeviceManager were added that by default has no services running
on usb. Everything else has mtp. This makes it so we always populate
the property with something.
Change-Id: Ic24f52462ed8866e87499c715dd21937e5b1128d
