qcacmn: Initialize qid to qidx mapping to max value

By default qid to qidx mapping gets value zero as default
initialization which creates issue to identify whether zero
is valid or invalid index.

Initializing to maximum value will eliminate above mentioned
issue.

Change-Id: I4c0e2ba45e67fe6e167bd965bdb7ab901c3828a8
CRs-Fixed: 2001133
1 file changed