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/net/mac802154/main.c b/net/mac802154/main.c
index ddcd6ff..356b346 100644
--- a/net/mac802154/main.c
+++ b/net/mac802154/main.c
@@ -116,6 +116,9 @@
 	phy->supported.max_csma_backoffs = 5;
 	phy->supported.lbt = NL802154_SUPPORTED_BOOL_FALSE;
 
+	/* always supported */
+	phy->supported.iftypes = BIT(NL802154_IFTYPE_NODE);
+
 	return &local->hw;
 }
 EXPORT_SYMBOL(ieee802154_alloc_hw);
@@ -181,6 +184,9 @@
 		local->phy->supported.max_frame_retries = -1;
 	}
 
+	if (hw->flags & IEEE802154_HW_PROMISCUOUS)
+		local->phy->supported.iftypes |= BIT(NL802154_IFTYPE_MONITOR);
+
 	rc = wpan_phy_register(local->phy);
 	if (rc < 0)
 		goto out_wq;