Merge \\\\\\"docs: Updated descriptions of device orientation angles.\\\\\\"...

Merge \\\\\\"docs: Updated descriptions of device orientation angles.\\\\\\" into mnc-docs am: d312201b am: 6b4d2a2e am: a812012c am: b9487874 am: 55b52a2b
am: b73cdcef

Change-Id: If11f3825cc3677b2976e6a253aa77b6e86e218dd