firmware-utils: mkfwimage: add support for Ubiquiti XC devices

This commit adds support for Ubiquiti devices based on the XC board
type, such as the PowerBeam 5AC 500. The factory binary structure is
the same as the WA type.

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>

tools/firmware-utils/src/mkfwimage.c

@@ -137,6 +137,15 @@ struct fw_info fw_info[] = {
 		},
 		.sign = true,
 	},
+	{
+		.name = "XC",
+		.fw_layout = {
+			.kern_start	=	0x9f050000,
+			.kern_entry	=	0x80002000,
+			.firmware_max_length=	0x00F60000,
+		},
+		.sign = true,
+	},
 	{
 		.name = "ACB-ISP",
 		.fw_layout = {