boards: arm: adafruit_feather_m0_lora: fix lora samples

The dts is missing the alias lora0.


Signed-off-by: Nathan Braun <nathan.braun@gmx.ch>
diff --git a/boards/arm/adafruit_feather_m0_lora/adafruit_feather_m0_lora.dts b/boards/arm/adafruit_feather_m0_lora/adafruit_feather_m0_lora.dts
index 6d890b0..ac62ebc 100644
--- a/boards/arm/adafruit_feather_m0_lora/adafruit_feather_m0_lora.dts
+++ b/boards/arm/adafruit_feather_m0_lora/adafruit_feather_m0_lora.dts
@@ -25,6 +25,7 @@
 	/* These aliases are provided for compatibility with samples */
 	aliases {
 		led0 = &led0;
+		lora0 = &lora;
 	};
 
 	leds {