[Helix-client-dev] CR/CN: Use ALSA sound on Linux

Fixed to actually use ALSA on Linux when HELIX_FEATURE_ALSA is defined,
instead of just compiling and ignoring it!

Index: hxaudev.cpp
===================================================================
RCS file: /cvsroot/audio/device/hxaudev.cpp,v
retrieving revision 1.40
diff -u -w -r1.40 hxaudev.cpp
--- hxaudev.cpp 14 Jun 2011 02:02:08 -0000      1.40
+++ hxaudev.cpp 16 Mar 2012 20:57:01 -0000
@@ -256,7 +256,7 @@
  #endif

  #if defined(_LINUX) ||  defined(_FREEBSD) || defined(_NETBSD)
-# if defined(HELIX_FEATURE_OLPC) || defined(HELIX_CONFIG_MOBLIN)
+# if defined(HELIX_FEATURE_OLPC) || defined(HELIX_CONFIG_MOBLIN) || 
defined(HELIX_FEATURE_ALSA)
      UINT16 nSoundDriver = kALSA;
  #elif defined(ANDROID)
      UINT16 nSoundDriver = kAndroidAudio;