qcacld-3.0: Use mac_handle_t in wlan_hdd_scan

Change "qcacld-3.0: Introduce mac_handle_t" introduced a modern name
for what was previously called the tHalHandle. Transition
wlan_hdd_scan to use the new naming. In the case of scheduled scan
remove unnecessary testing of the handle since the scan component will
validate the actual vdev.

Change-Id: I68d2be133bd6d18c97ad5211b0d6f95f4ad28652
CRs-Fixed: 2264397
1 file changed