asoc: msm-pcm-routing: Assign default topology when app_type is zero

In normal cases audio hal will sent  proper ACDB and APP type values
but in some cases if app type becomes zero.Assign default topology
when app_type is zero.

Change-Id: Id588308650f823f7d94ffb1fd2d7656d4bcf9cb2
Signed-off-by: Arungopal Kondaveeti <quic_kondavee@quicinc.com>