diag: dci: Extend DCI support to LPASS

Diag on LPASS has added support for DCI. Add support for DCI logs,
events and command response to the clients on the APSS.

Change-Id: I1b72de1a942f0965e5c75f9059e66ab61e8d7c91
Signed-off-by: Ravi Aravamudhan <aravamud@codeaurora.org>