Update mkimage config

dtb is loaded separately, so it doesn't need to be included in boot.img

Change-Id: I498200e445bc7bdf236d95e46ebf7ce504a3764d

debian/kernel-fit-image.its

diff --git a/debian/kernel-fit-image.its b/debian/kernel-fit-image.its
index ac09a98..480010f 100644
--- a/debian/kernel-fit-image.its
+++ b/debian/kernel-fit-image.its
@@ -18,29 +18,17 @@
                                 algo = "sha256";
                         };
                 };
-                fdt@1 {
-                        description = "Flattened Device Tree blob";
-                        data = /incbin/("../arch/arm64/boot/dts/mediatek/mt8167-coral.dtb");
-                        type = "flat_dt";
-                        arch = "arm64";
-                        compression = "none";
-                        load = <0x42000000>;
-                        hash@1 {
-                                algo = "sha256";
-                        };
-                };
         };
 
         configurations {
                 default = "conf@1";
                 conf@1 {
-                        description = "Boot Linux kernel with FDT blob";
+                        description = "Boot Linux kernel";
                         kernel = "kernel@1";
-                        fdt = "fdt@1";
                         signature@1 {
                                 algo = "sha256,rsa2048";
                                 key-name-hint="dev";
-                                sign-images="fdt","kernel";
+                                sign-images="kernel";
                         };
                 };
         };