qcacld-3.0: Handle wmi_key_material_ext tlv of ROAM_SYNCH event

With current design, firmware sends the kck, kek and replay
counters as part of wmi_key_material tlv over the
WMI_ROAM_SYNCH_EVENTID event. But the maximum supported kck key
length in wmi_key_material was 16 bytes. But for FT Suite-B
(akm 00:0f:ac:13), the kck_bits is 24 bytes long and cannot be
sent over wmi_key_material. So firmware sends kck, kek and
replay counter values over the new tlv wmi_key_material_ext.

Host driver copies the kck key with fixed 16 byte length to the
upper layers. Introduce kck_length parameter in csr_roam_info
and roam_offload_synch_ind structures and copy kck based on this
length.

Also fix maximum number of AKM suites supported to 5, as some
certification test cases advertise 5 akms.

Change-Id: Iab050e3e3f7efead8070a02094998d15f7ffcbd0
CRs-Fixed: 2400770
18 files changed