clearfog: Reboot on panic

...which now includes FS errors as well as oopses and general panics. In
short, let's use that redundant rootfs that we have.

I wonder if this is going to bite me in the ass in future (or when).

Change-Id: I740cdd19c16492856d9adc8e646f79c637e30950
diff --git a/configs/czechlight_clearfog_defconfig b/configs/czechlight_clearfog_defconfig
index 4647e25..960e4c8 100644
--- a/configs/czechlight_clearfog_defconfig
+++ b/configs/czechlight_clearfog_defconfig
@@ -41,7 +41,7 @@
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_VERSION=y
 BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2017.09"
-BR2_TARGET_UBOOT_PATCH="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/patches/u-boot/0001-Unconditionally-enable-watchdog-timer-on-Clearfog.patch $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/patches/u-boot/0002-Add-another-redundant-storage-for-the-environment.patch $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/patches/u-boot/0003-clearfog-hard-code-the-RAUC-redundant-boot-to-uboot-.patch"
+BR2_TARGET_UBOOT_PATCH="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/patches/u-boot/0001-Unconditionally-enable-watchdog-timer-on-Clearfog.patch $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/patches/u-boot/0002-Add-another-redundant-storage-for-the-environment.patch $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/patches/u-boot/0003-clearfog-hard-code-the-RAUC-redundant-boot-to-uboot-.patch $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/patches/u-boot/0004-clearfog-Auto-reboot-on-panic-and-oops.patch"
 BR2_TARGET_UBOOT_BOARD_DEFCONFIG="clearfog"
 BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/uboot.fragment"
 # BR2_TARGET_UBOOT_FORMAT_BIN is not set