qcacld-3.0: Incorporate new MAC handle naming in HDD

Change "qcacld-3.0: Introduce mac_handle_t" introduced a modern name
for what was previously called the tHalHandle. Incorporate the new
name in struct hdd_context, as well as introduce new MAC handle
accessor functions. Future changes will transform the existing
tHalHandle references to mac_handle_t references throughout HDD.

Change-Id: Ic33c5f9332ccda6a7825a2a8521ebb0e66d1ab98
CRs-Fixed: 2261200
1 file changed