fickit: add acpid to handle power button press

fickit-backend.yml

@@ -111,6 +111,10 @@ services:
 #    image: linuxkit/getty:v0.7
 #    env:
 #      - INSECURE=true
+
+  # Enable acpi to shutdown on power events
+  - name: acpid
+    image: linuxkit/acpid:v0.7
   - name: rngd
     image: linuxkit/rngd:v0.7
   - name: db

fickit-frontend.yml

@@ -115,6 +115,10 @@ services:
 #    image: linuxkit/getty:v0.7
 #    env:
 #      - INSECURE=true
+
+  # Enable acpi to shutdown on power events
+  - name: acpid
+    image: linuxkit/acpid:v0.7
   - name: rngd
     image: linuxkit/rngd:v0.7
   - name: dhcpcd