There is a compilation issue if a variable is passed to
kernel api DECLARE_HASHTABLE.
TO resolve this issue, instead of passing a variable
pass a constant to DECLARE_HASHTABLE.
Change-Id: Ie9782af541bb34cc50f79060b0007dc73881e5f4
CRs-Fixed: 2386893
Add a thin wrapper in QDF around the kernel hashtable implementation.
Additionally, add basic unit tests for these APIs.
Change-Id: I07999e5fc8116e67b3850b866ced20af64342055
CRs-Fixed: 2359335
