Save persistent DSes to /cfg upon each change

This is pretty crude -- whenever an "interesting" file in our overlay
/etc/sysrepo/data gets changed, ensure that we store it in the
non-volatile /cfg partition as well.

Change-Id: Ie6165564a03bf49a51e3475d61d77e3a0374632c
diff --git a/configs/czechlight_clearfog_defconfig b/configs/czechlight_clearfog_defconfig
index fce8742..e9182c9 100644
--- a/configs/czechlight_clearfog_defconfig
+++ b/configs/czechlight_clearfog_defconfig
@@ -31,6 +31,7 @@
 BR2_PACKAGE_UBOOT_TOOLS=y
 BR2_PACKAGE_OPENSSH=y
 BR2_PACKAGE_BASH=y
+BR2_PACKAGE_INOTIFY_TOOLS=y
 BR2_PACKAGE_RAUC=y
 BR2_PACKAGE_RAUC_NETWORK=y
 # BR2_PACKAGE_SYSTEMD_HWDB is not set