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