pulseaudio: Fix mutext issue when do pause in gstreamer

Pulseaudio crashes when other program using sound:
Assertion 'pthread_mutex_unlock(&m->mutex) == 0' failed at pulsecore/mutex-posix.c:106, function pa_mutex_unlock().

Disable the feature PTHREAD priority inheritance is the easiest workaround for this issue.

---
 .../pulseaudio/pulseaudio_5.0.bbappend             |    4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 recipes-multimedia/pulseaudio/pulseaudio_5.0.bbappend

new file mode 100644
index 0000000..b9acb36
@@ -0,0 +1,4 @@
+
+CACHED_CONFIGUREVARS_append_mx6 = " ax_cv_PTHREAD_PRIO_INHERIT=no"
+
+PACKAGE_ARCH_mx6 = "${MACHINE_SOCARCH}"

1.7.9.5