images: Ensure that all mount points are created

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

lfs/cdrom

@@ -150,7 +150,8 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	# Copy all files that we want
 	$(call COPY_FILES,$(DIR_SRC)/config/rootfiles/common,$(DIR_TMP)/root)
 
-	mkdir $(DIR_TMP)/root/sys
+	# Create mountpoints
+	$(call CREATE_MOUNTPOINTS,$(DIR_TMP)/root)
 
 	# Create the archive
 	$(call COMPRESS_ZSTD,$(DIR_TMP)/root,$(DIR_TMP)/cdrom/distro.img)