WiFi-HAL: Update handler if an event is already registered

If an already registered vendor event tries to register
for the second time, update the call back function but do not
add a new entry to the handlers.

Bug: 23483365
Change-Id: I93446721b2e75b768c8f7b40583e7ac7d1e5c282
1 file changed
tree: 8d7b6b2476a06a6d3a15fc09e21f03bffbe26b6c
  1. qcwcn/