wlan: Private IOCTL "dataSnapshot" for Data Path Dump State

Introducing a new Private IOCTL for printing Data Path information. This
can be invoked during data stall issues to give more insight into the
Data Paht.The command first prints HDD WMM Tx Queue information, then
posts a new message in TX Thread, which then is handled by TL. After TL
dumping is done, TL initiates a DXE Dump so that we can have both the
information in one shot.

Change-Id: I0449d16939ec029032ee27abf884a8525846c6df
CRs-fixed: 483187
7 files changed
tree: 38fa65876a2a2df301feda3d38b8b03c68f08156
  1. CORE/
  2. firmware_bin/
  3. riva/
  4. Android.mk
  5. Kbuild
  6. Kconfig