Add parsed flag

Add parsed flag to indicate that var data has been fully parsed. This
is used to mark rest of data (if any) as unused.
Parse set var curr_etheraddr
Parse set var mcast_list
Parse set var arp_hostip
Parse data for WLC commands where data is of uint32 type

Parse data for WLC cmds where data is of integer type.
  Type based on grepping linux driver sources for:
   - brcmf_fil_cmd_int_get
   - brcmf_fil_cmd_int_set
Parse WLC_SET_SSID
Parse WLC_SCAN
Parse WLC_DISASSOC
Parse WLC_GET_BSSID
Parse WLC_SET_ROAM_TRIGGER
Parse WLC_SET_ROAM_DELTA
Parse WLC_GET_RSSI
Parse WLC_GET_DTIMPRD
Report ioctl commands status in pinfo field
Merge pull request #3 from kanstrup/misc2

Misc2