at86rf230: add reset state cca handling

This patch adds the default cca setting after device reset for at86rf230
driver.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/net/ieee802154/at86rf230.c

@@ -1441,6 +1441,8 @@ at86rf230_detect_device(struct at86rf230_local *lp)
 			IEEE802154_HW_TXPOWER | IEEE802154_HW_ARET |
 			IEEE802154_HW_AFILT | IEEE802154_HW_PROMISCUOUS;
 
+	lp->hw->phy->cca.mode = NL802154_CCA_ENERGY;
+
 	switch (part) {
 	case 2:
 		chip = "at86rf230";