qcacld-3.0: Use mac_handle_t in wlan_hdd_wext

Change "qcacld-3.0: Introduce mac_handle_t" introduced a modern
name for what was previously called the tHalHandle. Transition
wlan_hdd_wext to use the new naming.

Change-Id: I3cabec634252453b33c8f480ba785cc739e872df
CRs-Fixed: 2267115
2 files changed