qcacmn: Correct input type for qdf_mem_zero

In dp_ipa_setup function, the function qdf_mem_zero is called
and should receive a pointer instead of address to a pointer for tx
and rx when they are called. These pointers are also initialized to
NULL when declared locally.

Change-Id: Iec9c76c63cc2ec00bdfb54497cca2f22fabff045
CRs-Fixed: 2469428
1 file changed