Android: Revert patch that changes plugin interfaces in QtSensors

nother thing: I had a look at the diff, and saw that it renames the plugin 
interfaces from com.nokia to org.qt-project. However this change is 
incomplete, as it misses the examples, tests and doc snippets. I'd prefer if 
you revert that change in the branch.

Lorn is already working on the same renaming at https://codereview.qt-
project.org/#change,45288, and that patch seems to rename all instances.