Add a few more HAL msgs
FEATURE_CAPS_EXCHANGE_RSP has no status
Merge pull request #1 from pof2/misc

Misc
Multicast list and rcv packet filter commands parsing implemented
Add channel number to pinfo for scans
Add parsing of enter/exit bmps commands
Removed some duplicate protofield definitions
Further command parsing implemented

Parsing for the following HAL commands implemented:
del_ba
rmv_bsskey
rmv_stakey
get_stats
Copy paste error for set_link_st command fixed
Implement CONFIG_STA_REQ
Implement WLAN_HAL_CONFIG_BSS
Implement SEND_BEACON_REQ
Implement UPDATE_PROBE_RSP_TEMPLATE_REQ
Implement UPDATE_BEACON_REQ
Implement SET_STAKEY_REQ
UPDATE_SCAN_PARAM_REQ has no status
Implement FINISH_SCAN_REQ
Implement CONFIG_BSS_RSP
Implement SET_BSSKEY_REQ
Implement GET_STATS_RSP