Merge "Call ttse_terminate() when TTS engine is changed" into tizen

diff --cc client/tts_core.c
index 2d7d9326811da37d1c88957342511816938482c1,798cf68b51e89e446b1033d174e58a0dab5f3932..13345b2e7a5f2c66862f847911e40720f044deb6
--- 1/client/tts_core.c
--- 2/client/tts_core.c
+++ b/client/tts_core.c
@@@ -1127,8 -1127,9 +1127,8 @@@ int tts_core_reprepare(
  
                while (NULL != iter) {
                        tts_client_s* client = iter->data;
-                       if (false == tts_client_is_valid_client(client)) {
+                       if (true == tts_client_is_valid_client(client)) {
                                tts_client_set_current_state(client, TTS_STATE_CREATED);
 -                              client->reason = TTS_ERROR_NONE;
                        }
  
                        iter = g_list_next(iter);