lpsink: Fix to condition state of abnormal audio stream
lpsink: Fix to condition state of abnormal audio stream

Change-Id: If5c2be7012a79cd2bb96b4858df82cbb4af4f20b
Reviewed-on: https://gpro.palm.com/7206
Tested-by: HoonHee Lee <41497318ef67053f37c2ac0e974a3369f66d66ec@lge.com>
Reviewed-by: Jeongseok Kim <0c03ab7a1b32f29697716389c3f9549845834271@lge.com>
Tested-by: Jeongseok Kim <0c03ab7a1b32f29697716389c3f9549845834271@lge.com>

justinjoy/gst-plugins-lp,justinjoy/gst-plugins-lp