sip_transport: change idle_timeout to 10 seconds

ICE sessions take a long time to be closed and keep alive packets
are sent during 10 minutes. Change the timeout to close the session
after 10 seconds.

Change-Id: I7cd287551a9aa76b475cf765a941cc6bcb72f55b
Gitlab: #108

contrib/src/pjproject/sip_config.patch

- pjsip/include/pjsip/sip_config.h | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
+ pjsip/include/pjsip/sip_config.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
 
 diff --git a/pjsip/include/pjsip/sip_config.h b/pjsip/include/pjsip/sip_config.h
-index 904df24e..987ff41d 100644
+index 904df24e..f36b2d6a 100644
 --- a/pjsip/include/pjsip/sip_config.h
 +++ b/pjsip/include/pjsip/sip_config.h
 @@ -359,7 +359,7 @@ PJ_INLINE(pjsip_cfg_t*) pjsip_cfg(void)
@@ -12,3 +12,12 @@ index 904df24e..987ff41d 100644
 -#   define PJSIP_MAX_PKT_LEN		4000
 +#   define PJSIP_MAX_PKT_LEN		8000
  #endif
+ 
+ 
+@@ -658,7 +658,7 @@ PJ_INLINE(pjsip_cfg_t*) pjsip_cfg(void)
+  * Default: 600
+  */
+ #ifndef PJSIP_TRANSPORT_SERVER_IDLE_TIME
+-#   define PJSIP_TRANSPORT_SERVER_IDLE_TIME	600
++#   define PJSIP_TRANSPORT_SERVER_IDLE_TIME	10
+ #endif