qcacmn: export wmi_mtrace for use in all TLV files

wmi_mtrace is defined as static in wmi_unified_tlv.c and
used in TLV functions, but some TLVs need to be featurized
and moved to separated TLV files. Need to export wmi_mtrace
for external use.

Change-Id: I9459ec01c9cd4a89f3544d6a9831acba56e6a278
CRs-Fixed: 2314779
2 files changed