angstrom now uses same MACHINE_ARM for all armv7a+ machines

Signed-off-by: Khem Raj <raj.khem@gmail.com>
update local.conf to reflect extra pinnings

Signed-off-by: Khem Raj <raj.khem@gmail.com>

Conflicts:
	conf/local.conf
Use angstrom captured repos for oe-core/meta-oe/meta-ti

Signed-off-by: Khem Raj <raj.khem@gmail.com>