configs/raspberrypi4_64: new defconfig

This configuration builds a 64bit image for RaspberryPi 4.

Signed-off-by: Arthur Courtel <arthur.courtel@smile.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

board/raspberrypi/genimage-raspberrypi4-64.cfg

@@ -0,0 +1,30 @@
+image boot.vfat {
+  vfat {
+    files = {
+      "bcm2711-rpi-4-b.dtb",
+      "rpi-firmware/cmdline.txt",
+      "rpi-firmware/config.txt",
+      "rpi-firmware/fixup4.dat",
+      "rpi-firmware/start4.elf",
+      "rpi-firmware/overlays",
+      "Image"
+    }
+  }
+  size = 32M
+}
+
+image sdcard.img {
+  hdimage {
+  }
+
+  partition boot {
+    partition-type = 0xC
+    bootable = "true"
+    image = "boot.vfat"
+  }
+
+  partition rootfs {
+    partition-type = 0x83
+    image = "rootfs.ext4"
+  }
+}