omx: Add nBitsPerSample parameter for FLAC

 * Necessary to convey this information from the extractor.

Change-Id: Ic6f689df9d5f840280bf0410021f6d6ee04a48d5
Calculate application sizes correctly

Thanks to Pierre-Hugues Husson for looking at my code and finding out
that the application sizes were not being calculated properly!

Change-Id: I68af6a9e5d1b2b7e60c0409b55d8ee578e567a69
C++11 Fixes.
C++11 string literal fixes.

GCC 4.9 now just throws errors on these rather than warning like previous GCCs.
sensorservice: Build with Clang.