Fixed default ALSA state for SL-Cxx00 (OE#2617).

Fixed default ALSA state for SL-Cxx00 (OE#2617).
  * Fixes bass/treble levels (reflects kernel fix alsa-wm8750-treble.patch (>2.6.24)).
  * Increased Mic Levels and Boost.
  * Enabled Capture Switch.
  * Improved Headphones / Speaker volume balance.
  * Disabled all bypasses.
  * Disabled Left -> Right routing.
  * All Mono signals decreased to 0 (not connected).
  * Line Mux changed to differential, keeping PGA unused.
  * Using Digital mono for recording (jack supports ony mono).
  * Enabled Automatic Level Control, optimized for voice recording.
  * Enabled Zero Cross volume changes.