diag: Featurize IPC logging

Currently, in case IPC logging related config
is disabled then there are some unwanted error
logs in kernel logs. Featurize IPC logging to
get rid of error logs.

Change-Id: I8455f5e3a13cf58b4d65d1e1a5c4f1ec0adedabf
Signed-off-by: Mohit Aggarwal <maggarwa@codeaurora.org>