msm: ipa3: Fix to client init completion

Durign client activation observing deadlock scenario
when client completion. So, completing client init at
the time of client registration.

Change-Id: I5a56e9827317acc9db9a22a705ff9c9c7ce9463d
Signed-off-by: Praveen Kurapati <pkurapat@codeaurora.org>