add for riscv64

Author: neil

.github/workflows/testrun.yml

@@ -59,7 +59,9 @@ jobs:
         qemu-utils \
         ca-certificates \
         qemu-system-x86 \
-        qemu-system-arm qemu-efi-aarch64 qemu-system-misc nfs-kernel-server rsync
+        qemu-system-arm qemu-efi-aarch64 \
+        qemu-system-misc u-boot-qemu ipxe-qemu \
+        nfs-kernel-server rsync
         sudo chmod 666 /dev/kvm || true
 
     - name: Install dependencies (macOS)