* Modified HWMP PREP/PREQ to contain a proxy entry and also changed PREP
frame processing according to amendment as following:
o Fixed PREP to always update/create if acceptance criteria is meet;
o PREQ processing to reply if request is for a proxy entry that is
proxied by us;
o Removed hwmp_discover call from PREQ, because sending a PREP will
build the forward path, and by receving and accepting a PREQ we
have already built the reverse path (non-proactive code);
* Disabled code for pro-active in PREP for now (will make a separate patch for
pro-active HWMP routing later)
* Added proxy information for a Mesh route, mesh gate to use and proxy seqno;
* Modified ieee80211_encap according to amendment;
* Introduced Mesh control address extension enum and removed unused struct,
also rename some structure element names.
* Modified mesh_input and added mesh_recv_* that should verify and process mesh
data frames according to 9.32 Mesh forwarding framework in amendment;
* Modified mesh_decap accordingly to changes done in mesh control AE struct;
Approved by: adrian
3c314f6dc3