dmsquash-live/apply-live-updates.sh: needs 'find'

also add /run/initramfs/live/updates as a directory, where to pull
the updates from

https://bugzilla.redhat.com/show_bug.cgi?id=1213736

modules.d/90dmsquash-live/apply-live-updates.sh

@@ -1,11 +1,13 @@
 #!/bin/sh
 
-if [ -b /dev/mapper/live-rw ] && [ -d /updates ]; then
+if [ -b /dev/mapper/live-rw ] && [ -d /run/initramfs/live/updates -o -d /updates ]; then
     info "Applying updates to live image..."
     mount -o bind /run $NEWROOT/run
     # avoid overwriting symlinks (e.g. /lib -> /usr/lib) with directories
+    for d in /updates /run/initramfs/live/updates; do
+        [ -d "$d" ] || continue
         (
-        cd /updates
+            cd $d
             find . -depth -type d | while read dir; do
                 mkdir -p "$NEWROOT/$dir"
             done
@@ -13,5 +15,6 @@ if [ -b /dev/mapper/live-rw ] && [ -d /updates ]; then
                 cp -a "$file" "$NEWROOT/$file"
             done
         )
+    done
     umount $NEWROOT/run
 fi

modules.d/90dmsquash-live/module-setup.sh

@@ -22,7 +22,7 @@ installkernel() {
 
 # called by dracut
 install() {
-    inst_multiple umount dmsetup blkid dd losetup grep blockdev
+    inst_multiple umount dmsetup blkid dd losetup grep blockdev find
     inst_multiple -o checkisomd5
     inst_hook cmdline 30 "$moddir/parse-dmsquash-live.sh"
     inst_hook cmdline 31 "$moddir/parse-iso-scan.sh"