change distro name angstrom-next -> angstrom
change distro name angstrom-next -> angstrom

Change-Id: Iee0c0ac51d32b597015a97ae733cfb15997e8e55
Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

96boards/oe-rpb-manifest,ndechesne/qcom-oe-manifest,linaro-home/lhg-oe-manifests,koenkooi/angstrom-manifest,Angstrom-distribution/angstrom-manifest,twoerner/angstrom-manifest