Fix docker feature p2.inf to have proper Linux Tools Docker update site.

Change-Id: Ifd0a632ee5e6382c19d8326e4e8637e17b7e4a03
Reviewed-on: https://git.eclipse.org/r/49952
Reviewed-by: Jeff Johnston <jjohnstn@redhat.com>
Tested-by: Jeff Johnston <jjohnstn@redhat.com>
diff --git a/containers/org.eclipse.linuxtools.docker-feature/p2.inf b/containers/org.eclipse.linuxtools.docker-feature/p2.inf
index 7bc97f0..818437d 100644
--- a/containers/org.eclipse.linuxtools.docker-feature/p2.inf
+++ b/containers/org.eclipse.linuxtools.docker-feature/p2.inf
@@ -1,3 +1,3 @@
 instructions.configure=\
-org.eclipse.equinox.p2.touchpoint.eclipse.addRepository(location:http${#58}//download.eclipse.org/linuxtools/updates-docker-nightly,type:0,name:Linux Tools Docker Tooling,enabled:false); \
-org.eclipse.equinox.p2.touchpoint.eclipse.addRepository(location:http${#58}//download.eclipse.org/linuxtools/updates-docker-nightly,type:1,name:Linux Tools Docker Tooling,enabled:false); 
+org.eclipse.equinox.p2.touchpoint.eclipse.addRepository(location:http${#58}//download.eclipse.org/linuxtools/update-docker,type:0,name:Linux Tools Docker Tooling,enabled:false); \
+org.eclipse.equinox.p2.touchpoint.eclipse.addRepository(location:http${#58}//download.eclipse.org/linuxtools/update-docker,type:1,name:Linux Tools Docker Tooling,enabled:false);