update configuration

1 remove layer dependency.
2 remove auto-serial-console

Signed-off-by: Kai Kang <kai.kang@windriver.com>
remove unusable recipes

remove unusable recipes except coreutils which compile fails.

Signed-off-by: Kai Kang <kai.kang@windriver.com>
add kernel recipe from meta-linaro

Signed-off-by: Kai Kang <kai.kang@windriver.com>