fix spelling error in container labels

Change-Id: I00b16566a2ab4129788e116d71eb2542558ef2fc
diff --git a/ip-allocator/Dockerfile b/ip-allocator/Dockerfile
index 55f43eb..cac402b 100644
--- a/ip-allocator/Dockerfile
+++ b/ip-allocator/Dockerfile
@@ -30,7 +30,7 @@
 LABEL org.label-schema.name="allocator" \
       org.label-schema.description="Provides IP address allocation for fabric interfaces" \
       org.label-schema.vcs-url="https://gerrit.opencord.org/maas" \
-      org.label-schema.vendor="Open Networking Labratory" \
+      org.label-schema.vendor="Open Networking Laboratory" \
       org.label-schema.schema-version="1.0"
 
 ENTRYPOINT ["/go/bin/cord-ip-allocator"]