samples: 802154_phy_test: Enable TX diagnostic mode

The TX diagnostic mode is needed to allow the PHY test tool to send
arbitrary packets.

Signed-off-by: Rafał Kuźnia <[email protected]>

Author: e-rk

samples/peripheral/802154_phy_test/prj.conf

@@ -25,6 +25,7 @@ CONFIG_RING_BUFFER=y
 # Additional radio driver configurations
 CONFIG_NRF_802154_CARRIER_FUNCTIONS=y
 CONFIG_NRF_802154_ENCRYPTION=n
+CONFIG_NRF_802154_TX_DIAGNOSTIC_MODE=y
 
 # Shell configuration
 CONFIG_SHELL=y