defconfig: msm: enable remote debugger driver on Bengal_32

Add remote debugger device configuration. The Remote Debugger driver
allows a debugger running on a host PC to communicate with a remote
stub running on peripheral subsystems.

Change-Id: I1437286e3bfa014fb1b4ad9a2c6c1cdd33a61fb7
Acked-by: Devender Kaushik <dkaushik@qti.qualcomm.com>
Signed-off-by: Mohammed Nayeem Ur Rahman <mohara@codeaurora.org>