multiple containerd options

Signed-off-by: Avi Deitcher <avi@deitcher.net>

test/cases/040_packages/020_init_containerd/runtime-config.toml

@@ -0,0 +1,3 @@
+cliopts="--log-level trace"
+stderr="/var/log/containerd.out.log"
+stdout="stdout"

test/cases/040_packages/020_init_containerd/test.yml

@@ -2,7 +2,7 @@ kernel:
   image: linuxkit/kernel:5.4.39
   cmdline: "console=ttyS0 console=ttyAMA0"
 init:
-  - linuxkit/init:4f6508f4f35b134dda3807bb5d75c117c193a86a
+  - linuxkit/init:946ebf1d74bc96da8d4b90c75ae0dd8a8e962a6b
   - linuxkit/runc:v0.8
   - linuxkit/containerd:a4aa19c608556f7d786852557c36136255220c1f
   - linuxkit/ca-certificates:v0.8
@@ -19,8 +19,8 @@ services:
 files:
   - path: check.sh
     source: ./check.sh
-  - path: /etc/containerd/cli-opts
-    contents: "--log-level trace"
+  - path: /etc/containerd/runtime-config.toml
+    source: ./runtime-config.toml
 trust:
   org:
     - linuxkit