1. Add nativesdk support
- Apply the same patches of native
- Generate the same apt.conf.sample of native
2. Create user '_apt' to fix apt runtime warning
[snip]
$ apt update
...
W: No sandbox user '_apt' on the system, can not drop privileges
[snip]
RP: Add comment about need to user
RP: Add user to selftest static-passwd Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
