ieee802154: add iftypes capability

This patch adds capability flags for supported interface types.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index a12c6c52..11bbf17 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -80,7 +80,7 @@
 
 struct wpan_phy_supported {
 	u32 channels[IEEE802154_MAX_PAGE + 1],
-	    cca_modes, cca_opts;
+	    cca_modes, cca_opts, iftypes;
 	enum nl802154_supported_bool_states lbt;
 	u8 min_minbe, max_minbe, min_maxbe, max_maxbe,
 	   min_csma_backoffs, max_csma_backoffs;