Merge changes from topic "update-netconf"

* changes:
  buildroot upgrade
  update velia
  introduce sysrepo group for sysrepo-related processes
diff --git a/board/czechlight/clearfog/sdn-roadm-coherent-a-d-g2-clearfog.dts b/board/czechlight/clearfog/sdn-roadm-coherent-a-d-g2-clearfog.dts
index 99a6f1d..2eec33f 100644
--- a/board/czechlight/clearfog/sdn-roadm-coherent-a-d-g2-clearfog.dts
+++ b/board/czechlight/clearfog/sdn-roadm-coherent-a-d-g2-clearfog.dts
@@ -1,4 +1,3 @@
-#define CLEARFOG_REV1
 #include "sdn-roadm-clearfog.dtsi"
 
 &lumentum_ocm {