When WPS is used with NFC connection handover, the AP may indicate its operating channel within the credential information. Use this informatiom, if present, to speed up the scan process. Signed-hostap: Jouni Malinen <j@w1.fi>
This allows wps/wps_attr_parse.h to be included into files outside src/wps. Signed-hostap: Jouni Malinen <j@w1.fi>