clearfog: I need at least the GDB stub on the target

Change-Id: I85041dfb83d8fe3cad6ff53331907d7a52b5c01c
diff --git a/configs/czechlight_clearfog_defconfig b/configs/czechlight_clearfog_defconfig
index f2e38ab..0c4638d 100644
--- a/configs/czechlight_clearfog_defconfig
+++ b/configs/czechlight_clearfog_defconfig
@@ -29,6 +29,7 @@
 BR2_PACKAGE_LINUX_TOOLS_GPIO=y
 BR2_PACKAGE_LINUX_TOOLS_PERF=y
 BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/common/busybox-config"
+BR2_PACKAGE_GDB=y
 BR2_PACKAGE_E2FSPROGS=y
 BR2_PACKAGE_MMC_UTILS=y
 BR2_PACKAGE_SQUASHFS=y