61a57465ea
Move the orientation sanity-checks into the packet decode func. Rationale: the packet handling func may otherwise read beyond the end of device->last_axis_data. Also expand them to cope with my test Huion's weird reporting. Also correct the azimuth angle to align with GDK's presentation. Most importantly, fix annoying comment typo. https://bugzilla.gnome.org/show_bug.cgi?id=774265