[rbp/omxplayer] Fixed: analog output was not properly enabled due to a case sensitive settings check
Commit 67e957df4b41c3d58534d3b0b0ea2058a46ef256 changed the driver name from "Pi" to "PI"
Merge pull request #4110 from margro/rpi_fix_analog_audio

[rbp/omxplayer] Fixed: analog output was not properly enabled