sx1301: Update multitech_mtac_lora_h_915 SPI path.

The SPI path has been updated since the mPower 6.x firmware, but this
change was not applied to this config (it was fixed for _868).

Closes: #167.

chirpstack-concentratord-sx1301/src/config/vendor/multitech/mtac_lora_h_915.rs

@@ -169,8 +169,8 @@ pub fn new(conf: &config::Configuration) -> Result<Configuration> {
             false => Gps::None,
         },
         spidev_path: match port {
-            Port::AP1 => "/dev/spidev32766.2".to_string(),
-            Port::AP2 => "/dev/spidev32765.2".to_string(),
+            Port::AP1 => "/dev/spidev0.2".to_string(),
+            Port::AP2 => "/dev/spidev1.2".to_string(),
         },
         ..Default::default()
     })