* each DEFAULTTUNE with thumb enabled should list it's arm variants in
PACKAGE_EXTRA_ARCHS, otherwise packages which force arm ISA won't be
found in do_rootfs
* armv7athf-neon-vfpv4 was missing its own PACKAGE_ARCH and also the arm
variant
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>