[LTP] [PATCH v2] syscalls/ustat: convert to new lib, use direct syscall

[Petr Vorel]

Hi Steve,

> Use direct syscall to expand test compatibility to Android.

thanks for your patch, merged.

> Change-Id: I7c88e18990509458ca6066a09685d1d09b24907a
I'm sorry, I removed your gerrit's Change-Id from commit message.

Kind regards,
Petr