Update Android.mk for new plugin location
Update Android.mk for new plugin location

BZ: 190767

- Add license header.
- Update relative paths to match new plugin location.
- Update stlport import way
- Reorder few statements

Change-Id: I68aaebe0514624c65c9b6b39d1742b852ba0b311
Signed-off-by: Renaud de Chivre <4bf7853d466b3698c826565d4d8c39bfda2af487@intel.com>

android-ia/vendor_intel_hardware_audiocomms_parameter-framework_plugins_fs,clero/parameter-framework-plugins-filesystem,01org/parameter-framework-plugins-filesystem,clero/parameter-framework-plugins-filesystem,01org/parameter-framework-plugins-filesystem,android-ia/vendor_intel_hardware_audiocomms_parameter-framework_plugins_fs