Tools: run submodule fix 3 times

Tools/gittools/submodule-sync.sh

@@ -1,6 +1,12 @@
 #!/bin/sh
 
 # this copes with moving origin remote to a new git organisation
+# we run it 3 times due to the poor handling of recursion
 git submodule update --recursive --force --init
 git submodule sync --recursive
+
 git submodule update --recursive --force --init
+git submodule sync --recursive
+
+git submodule update --recursive --force --init
+git submodule sync --recursive