drivers: fpga: connect dts node with fpga driver

This commit connects the eos_s3 fpga driver with fpga dts node.

Signed-off-by: Mateusz Sierszulski <msierszulski@antmicro.com>

boards/arm/quick_feather/quick_feather.dts

@@ -51,7 +51,7 @@
 		};
 	};
 
-	fpga {
+	fpga0: fpga {
 		status = "okay";
 	};
 };