Enable debug symbols for the CzechLight/NETCONF stack

Yeah, I expect some crashes :)

Change-Id: I71b5b944fb82a3b580d3bfebcb37bbffe6a3b68a
diff --git a/configs/czechlight_clearfog_defconfig b/configs/czechlight_clearfog_defconfig
index dd3330f..7dfe952 100644
--- a/configs/czechlight_clearfog_defconfig
+++ b/configs/czechlight_clearfog_defconfig
@@ -3,6 +3,9 @@
 BR2_ARM_ENABLE_NEON=y
 BR2_ARM_ENABLE_VFP=y
 BR2_ARM_FPU_NEON=y
+BR2_ENABLE_DEBUG=y
+BR2_STRIP_EXCLUDE_FILES="cla-* netopeer2* sysrepo* libsysrepo* libSysrepo* libnetconf2* libyang*"
+BR2_STRIP_EXCLUDE_DIRS="/usr/lib/libyang /usr/lib/sysrepo"
 BR2_SSP_STRONG=y
 BR2_TOOLCHAIN_EXTERNAL=y
 BR2_TARGET_GENERIC_HOSTNAME="czechlight"