default.xml: clean up with 'repo manifest'
default.xml: clean up with 'repo manifest'

Change-Id: Ie86b4b39fd51c69b03a7daa9183a202ff5525864
Signed-off-by: Koen Kooi <42e3d96910f922bdd7dd1805fe3f8aff634f391d@dominion.thruhere.net>

Angstrom-distribution/angstrom-manifest