qcacmn: Add a new version of hal_srng API does not update HW pointer

Add hal_srng unlock API to be  used in completions reap funtion (CE) in
which HW head pointer/tail pointers need not be updated

CRs-Fixed: 1088985
Change-Id: Ia54b144e5dfd0b37bbabf992c764697928ddf76d
2 files changed