qcacld-3.0: Refine the NAN Event callback API

The NAN Event callback currently specifies a void pointer for the
context. In the case of this API the context is actually known to be
an HDD handle, so update the API to explicitly use this type. This
will allow the compiler to verify that the correct type of parameter
is being passed.

Change-Id: I998119cb02d2b6412b63c36f740016745a6fbe4f
CRs-Fixed: 2278582
5 files changed