Bump initrd for alpine with some fixes for missing dirs (#1276)

packages/alpine/collection.yaml

@@ -1,7 +1,7 @@
 packages:
   - name: "alpine"
     category: "initrd"
-    version: "3.8.2-3"
+    version: "3.8.2-4"
     description: "Provides custom initrd scripts for alpine"
 # This syncs with the alpine version at https://gitlab.alpinelinux.org/alpine/mkinitfs/-/blob/master/initramfs-init.in?ref_type=heads
 # any changes to the initramfs-init.in file should be looked at and backported if necessary

packages/alpine/files/initramfs-init

@@ -284,6 +284,8 @@ rd_break() {
 	"$ROOT"/media/usb \
 	"$ROOT"/tmp \
 	"$ROOT"/etc \
+	"$ROOT"/var/lock \
+	"$ROOT"/run/lock \
 	"$ROOT"/run/cryptsetup
 
 # Spread out busybox symlinks and make them available without full path