header tweak for netbsd

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@2919 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/portaudio.build.sh

@@ -27,7 +27,7 @@ patch <<__EOF__
  
  #ifdef __linux__
  #include <linux/soundcard.h>
-+#elif defined(__FreeBSD__)
++#elif defined(__FreeBSD__) || defined( __NetBSD__)
 +#include <sys/soundcard.h>
  #else
  #include <machine/soundcard.h> /* JH20010905 */