qcacld-3.0: Rename pMac in misc SME files

Per the Linux coding style "mixed-case names are frowned upon" and
"so-called Hungarian notation [...] is brain damaged." One identifier
used extensively throughout the driver that violates both of these
tenants is "pMac." In order to be compliant with the Linux coding
style there is a campaign to rename all instances of this identifier.

For this change rename all instances of "pMac" to "mac" in:
sme_api.h
sme_ft_api.c
sme_ft_api.h
sme_inside.h
sme_internal.h
sme_qos_internal.h
sme_trace.c
sme_trace.h

Change-Id: I24ae034a06051d2e61d6f02283b3d2ecbe376bf9
CRs-Fixed: 2355452
8 files changed