qemu-aarch64: set raw mode for disk

target/aarch64/Makefile

@@ -13,7 +13,7 @@ ifeq ($(ADK_TARGET_QEMU_WITH_VIRTIO),y)
 QEMU_ARGS+=-netdev user,id=eth0 -device virtio-net-device,netdev=eth0
 endif
 ifeq ($(ADK_TARGET_FS),archive)
-QEMU_ARGS+=-device virtio-blk-device,drive=vda -drive file=qemu-${ADK_TARGET_CPU_ARCH}.img,if=none,id=vda
+QEMU_ARGS+=-device virtio-blk-device,drive=vda -drive file=qemu-${ADK_TARGET_CPU_ARCH}.img,if=none,id=vda,format=raw
 endif
 
 # target helper text
@@ -25,7 +25,7 @@ ifeq ($(ADK_TARGET_QEMU),y)
 	@echo "Use following command to create a QEMU Image:"
 	@echo "./scripts/create.sh qemu-${ADK_TARGET_CPU_ARCH}.img $(FW_DIR)/$(ROOTFSTARBALL)"
 	@echo "Start qemu with following options:"
-	@echo 'qemu-system-${ADK_TARGET_CPU_ARCH} ${QEMU_ARGS} -kernel $(FW_DIR)/$(TARGET_KERNEL) qemu-${ADK_TARGET_CPU_ARCH}.img'
+	@echo 'qemu-system-${ADK_TARGET_CPU_ARCH} ${QEMU_ARGS} -kernel $(FW_DIR)/$(TARGET_KERNEL)'
 endif
 endif
 ifeq ($(ADK_TARGET_FS),initramfs)