pc-bios: add missing riscv64 descriptor

Without descriptor libvirt cannot discover the EDK II binaries via
the qemu:///system connection.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Message-ID: <20241212090059.94167-1-heinrich.schuchardt@canonical.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 74dc38d0c6c15fd57a5dee94125d13ac5b00491d)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

pc-bios/descriptors/60-edk2-riscv64.json

@@ -0,0 +1,31 @@
+{
+    "description": "UEFI firmware for riscv64",
+    "interface-types": [
+        "uefi"
+    ],
+    "mapping": {
+        "device": "flash",
+        "executable": {
+            "filename": "@DATADIR@/edk2-riscv-code.fd",
+            "format": "raw"
+        },
+        "nvram-template": {
+            "filename": "@DATADIR@/edk2-riscv-vars.fd",
+            "format": "raw"
+        }
+    },
+    "targets": [
+        {
+            "architecture": "riscv64",
+            "machines": [
+                "virt*"
+            ]
+        }
+    ],
+    "features": [
+
+    ],
+    "tags": [
+
+    ]
+}

pc-bios/descriptors/meson.build

@@ -6,7 +6,8 @@ if unpack_edk2_blobs and get_option('install_blobs')
     '60-edk2-arm.json',
     '60-edk2-i386.json',
     '60-edk2-x86_64.json',
-    '60-edk2-loongarch64.json'
+    '60-edk2-loongarch64.json',
+    '60-edk2-riscv64.json'
   ]
     configure_file(input: files(f),
                    output: f,