Start building sysrepo-ietf-alarms

The project also requires date library[1] but it was not running
correctly on our ARM. I had to patch the library with the workaround
from [2], hence the buildroot update.

[1] https://github.com/HowardHinnant/date
[2] https://github.com/HowardHinnant/date/issues/252

Change-Id: Ie82b8c9ea50b0198b024256ff81d67ba7344c190
diff --git a/package/czechlight-cfg-fs/czechlight-install-yang.sh b/package/czechlight-cfg-fs/czechlight-install-yang.sh
index 9c072d4..edfd6b1 100755
--- a/package/czechlight-cfg-fs/czechlight-install-yang.sh
+++ b/package/czechlight-cfg-fs/czechlight-install-yang.sh
@@ -9,6 +9,7 @@
 
 CLA_YANG="${CLA_YANG:-/usr/share/cla-sysrepo/yang}"
 VELIA_YANG="${VELIA_YANG:-/usr/share/velia/yang}"
+ALARMS_YANG="${ALARMS_YANG:-/usr/share/sysrepo-ietf-alarms/yang}"
 PROC_CMDLINE="${PROC_CMDLINE:-/proc/cmdline}"
 
 for ARG in $(cat "$PROC_CMDLINE"); do
@@ -73,6 +74,9 @@
     sysrepoctl --search-dirs ${CLA_YANG} --install ${CLA_YANG}/czechlight-calibration-device@2019-06-25.yang --permissions 0660
 fi
 
+sysrepoctl --search-dirs ${ALARMS_YANG} --install ${ALARMS_YANG}/ietf-alarms@2019-09-11.yang --permissions 0660 --enable-feature alarm-shelving --enable-feature alarm-summary
+sysrepoctl --search-dirs ${ALARMS_YANG} --install ${ALARMS_YANG}/sysrepo-ietf-alarms@2022-02-17.yang --permissions 0660
+
 sysrepoctl --search-dirs ${VELIA_YANG} --install ${VELIA_YANG}/ietf-system@2014-08-06.yang --permissions 0660
 
 sysrepoctl --search-dirs ${VELIA_YANG} --install ${VELIA_YANG}/czechlight-lldp@2020-11-04.yang --permissions 0660