/cfg: config option for persistent storage of sysrepo's data

Change-Id: Ie29c1488f32b1739d2e6a197041de1883f848fe0
diff --git a/configs/czechlight_clearfog_defconfig b/configs/czechlight_clearfog_defconfig
index ce20748..9d0c85e 100644
--- a/configs/czechlight_clearfog_defconfig
+++ b/configs/czechlight_clearfog_defconfig
@@ -68,6 +68,7 @@
 BR2_PACKAGE_HOST_GENIMAGE=y
 BR2_PACKAGE_HOST_MTOOLS=y
 CZECHLIGHT_CFG_FS_SIZE="256M"
+CZECHLIGHT_CFG_FS_PERSIST_SYSREPO=y
 CZECHLIGHT_RAUC_ROOTFS=y
 CZECHLIGHT_RAUC_COMPATIBLE="czechlight-clearfog"
 CZECHLIGHT_RAUC_SLOT_A_ROOTFS_DEV="/dev/mmcblk0p1"