qcacld-3.0: Rename hdd_is_valid_mac_address() pMacAddr param

hdd_is_valid_mac_address() currently takes a parameter named pMacAddr.
Per the Linux coding style "mixed-case names are frowned upon" and
"so-called Hungarian notation [...] is brain damaged" so rename the
parameter to mac_addr to conform to the naming convention. As part of
the cleanup relocate the documentation so that the interface is
documented, not the implementation.

Change-Id: I4abff563bb396a4ffce1356527307ce3bfed8a16
CRs-Fixed: 2347990
2 files changed