its: r3: add r3mini dtb to fit

squashed:
- add emmc config for r3mini

bpi-r3.its

@@ -29,6 +29,17 @@
 				algo = "sha1";
 			};
 		};
+		fdt-base-mini {
+			description = "Flattened Device Tree blob for r3 mini";
+			data = /incbin/("./arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-mini.dtb");
+			type = "flat_dt";
+			arch = "arm64";
+			load = <0x47000000>;
+			compression = "none";
+			hash-1 {
+				algo = "sha1";
+			};
+		};
 		fdt-ov-sd {
 			description = "Flattened Device Tree blob";
 			data = /incbin/("./arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-sd.dtbo");
@@ -81,6 +92,15 @@
 				algo = "sha1";
 			};
 		};
+		conf-emmc-mini {
+			description = "Boot Linux kernel with R3mini + EMMC FDT blob";
+			kernel = "kernel-1";
+			fdt = "fdt-base-mini", "fdt-ov-emmc";
+			//ramdisk = "ramdisk-1";
+			hash-1 {
+				algo = "sha1";
+			};
+		};
 		conf-sd-nand {
 			description = "Boot Linux kernel with SD+NAND FDT blob";
 			kernel = "kernel-1";