defconfig: msm: enable remote debugger driver

The Remote Debugger Driver allows a debugger running on a host
PC to communicate with a remote stub running on peripheral
subsystems.

Change-Id: Icbb6c763eb6ee14bae5064d05a297c52ac16705a
Acked-by: Vivek Iyer <viyer@qti.qualcomm.com>
Acked-by: Mahesh Rohera <mrohera@qti.qualcomm.com>
Acked-by: Jay Jayanna <jjayanna@qti.qualcomm.com>
Signed-off-by: Sathish Ambley <sathishambley@codeaurora.org>