qcacmn: Add null check for legacy callback functions in policy manager

Add null check for callback functions registered from legacy modules
with policy manager.

Change-Id: I8a08870ea904f4e01a17f6a472bdd609df9c3c4c
CRs-Fixed: 2009818
2 files changed
tree: 12dffadcb15d27d99736628cede3068178752450
  1. inc/
  2. src/