BT problems in Acura MDX

problem2 unexpected beep from carkit during ringing.
The root cause is
the interval between the ring alert is 10 seconds. it is too long
for the carkit which trigger the beep from the carkit. After I
change the inteval to 5 seconds, no unexpected beep from the carkit.

issue 8720373

Change-Id: I6f1cc1faba27e61c80b31c63b6673436e003b117
diff --git a/bta/ag/bta_ag_cmd.c b/bta/ag/bta_ag_cmd.c
index d552eed..0839cbb 100644
--- a/bta/ag/bta_ag_cmd.c
+++ b/bta/ag/bta_ag_cmd.c
@@ -37,7 +37,7 @@
 *****************************************************************************/
 
 /* ring timeout */
-#define BTA_AG_RING_TOUT        10000
+#define BTA_AG_RING_TOUT        5000
 
 #define BTA_AG_CMD_MAX_VAL      32767  /* Maximum value is signed 16-bit value */