Migrate to libyang2

Also update buildroot to latest master:
- the sdbus-cpp version bump patch has been removed, because upstream
  now bumped it to an even newer version

- Fix RAUC not able to start a service
(https://github.com/buildroot/buildroot/commit/72308ab9a32de6e8b4b23e42f115ed5ee87e5f33)

Depends-on: https://cesnet-gerrit-czechlight/c/CzechLight/netconf-cli/+/4539
Depends-on: https://gerrit.cesnet.cz/c/CzechLight/netconf-cli/+/4539
Depends-on: https://cesnet-gerrit-czechlight/c/CzechLight/rousette/+/5391
Depends-on: https://gerrit.cesnet.cz/c/CzechLight/rousette/+/5391
Depends-on: https://gerrit.cesnet.cz/c/CzechLight/cla-sysrepo/+/5292
Depends-on: https://cesnet-gerrit-czechlight/c/CzechLight/velia/+/5237
Depends-on: https://gerrit.cesnet.cz/c/CzechLight/velia/+/5237
Change-Id: I6edc19f35accfd41a4b32f7b396981d470e0c07b
diff --git a/package/velia/velia.mk b/package/velia/velia.mk
index ec09817..885143e 100644
--- a/package/velia/velia.mk
+++ b/package/velia/velia.mk
@@ -2,7 +2,7 @@
 VELIA_SITE = https://gerrit.cesnet.cz/CzechLight/velia
 VELIA_SITE_METHOD = git
 VELIA_INSTALL_STAGING = NO
-VELIA_DEPENDENCIES = docopt-cpp spdlog boost sdbus-cpp systemd sysrepo libnl json-for-modern-cpp
+VELIA_DEPENDENCIES = docopt-cpp spdlog boost sdbus-cpp systemd sysrepo-cpp libnl json-for-modern-cpp
 VELIA_LICENSE = Apache-2.0
 VELIA_LICENSE_FILES = LICENSE.md