Audio: alsa is now default on linux, scons switch openal off by default (openal=yes to enabled)

minor clean up in audio config code


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4426 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/AudioCommon/Src/SConscript

@@ -22,6 +22,7 @@ if acenv['HAVE_AO']:
 
 if acenv['HAVE_ALSA']:
     files += [ 'AlsaSoundStream.cpp' ]
+
 if sys.platform == 'darwin':
     files += [ 'CoreAudioSoundStream.cpp' ]
     acenv['FRAMEWORKS'] = [ 'CoreAudio' ]