* Work based on initial patches from Jouni Malinen <jkmaline@cc.hut.fi>
* Initial wpa_supplicant support work:
* isl_ioctl.c (prism54_process_trap_helper): Start to use mlmeex,
* start doing what's right for
* DOT11_OID_AUTHENTICATEEX,
* DOT11_OID_ASSOCIATEEX,
* DOT11_OID_ASSOCIATEEX, and
* DOT11_OID_REASSOCIATEEX

* isl_ioctl.c: add temporary structure for wpa_supplicant requests,

* isl_ioctl.c: add prism2_ioctl_set_encryption which can probably be removed
later

* isl_ioctl.c: add prism2_ioctl_set_generic_element (well tested)

* isl_ioctl.c: add prism2_ioctl_mlme which should be unnecessary since
* WE scan should be used by wpa_supplicant

* isl_ioctl.c: add prism54_hostapd - this parses wpa_supplicant
* requests and does the right job for each

* isl_ioctl.c (prism54_set_wpa): changed to not use mgt_set/mgt_commit
* as commit is unecessary. Added proper OID sets to enable/disable WPA.
* This is called by wpa_supplicant at startup. This should eventually
* be part of WE18.

* isl_ioctl.c (prism54_ioctl): Links wpa_supplicant to prism54

* isl_ioctl.h: defined prism54_set_wpa to allow prism54_hostapd to use

* isl_oid.h: add struct obj_attachment for OID OID_TYPE_ATTACH

* oid_mgt.c: map OID DOT11_OID_ATTACHMENT to struct obj_attachment

* oid_mgt.c (mgt_le_to_cpu, mgt_cpu_to_le): handle endianness for
* obj_attachment

* oid_mgt.c: add mgt_set_varlen, needed for mlmeex as it has a
* variable size field.

* oid_mgt.c: add mgt_unlatch_all, this can be used to force a commit
* on OIDs:
* MEDIUMLIMIT, BEACONPERIOD, DTIMPERIOD, ATIMWINDOW,
* LISTENINTERVAL, FREQUENCY, EXTENDEDRATES
* These OIDs are "latched". TODO: config mode handling.
* oid_mgt.c (mgt_response_to_str): learn to parse OID_TYPE_ATTACH
* oid_mgt.h: add mgt_set_varlen, and mgt_unlatch_all