Improve adb devices parsing

`adb devices -l` prints one device per line, containing, separated by
spaces:
 - the device serial,
 - the device state,
 - a list of key:value pairs.

However, the device serial itself may contain spaces, making a simple
split ambiguous.

To avoid ambiguity, parse the string backwards:
 - first, parse all the trailing values until the device state,
   identified using a list of well-known values;
 - finally, treat the remaining leading token as the device serial.

Fixes #3537 <https://github.com/Genymobile/scrcpy/issues/3537>
Refs #6248 <https://github.com/Genymobile/scrcpy/issues/6248>
PR #6664 <https://github.com/Genymobile/scrcpy/pull/6664>