Add parsing for AP channel report IE.

Add parsing for AP channel report IE.

Eg:

TP-LINK_D579                     60:e3:27:e1:d5:79   10   54M  -72:-95   100 EP   SSID<TP-LINK_D579> RATES<B2,B4,B11,B22,18,36,72,108>
    DSPARMS<10> XRATES<12,24,48,96> COUNTRY<US  1-11,20> APCHANREP<class 32, chan:[1,2,3,4,5,6,7]> APCHANREP<class 33, chan:[5,6,7,8,9,10,11]>
    TIM<050400010000> ERP<0x4> HTCAP<cap 0x106e param 0x17 mcsset[0-15,32] extcap 0x0 txbf 0x0 antenna 0x0> HTINFO<ctl 10, 7,0,0,0 basicmcs[]>
    ???<4a0e14000a002c01c800140005001900> RSN<v1 mc:AES-CCMP uc:AES-CCMP km:8021X-PSK>
    WME<qosinfo 0x0 BE[aifsn 3 cwmin 4 cwmax 10 txop 0] BK[aifsn 7 cwmin 4 cwmax 10 txop 0] VO[aifsn 2 cwmin 3 cwmax 4 txop 94] VI[aifsn 2 cwmin 2 cwmax 3 txop 47]>
    BSSLOAD<sta count 0, chan load 11, aac 18> VEN<dd07000c4300000000>