[LTP] [PATCH 2/3] syscalls/preadv201: Add new testcase

[Cyril Hrubis]

Hi!
Pushed with minor changes:

1. moved the preadv2.h into include/lapi

2. reformatted the struct testcase array so that it's easier to read

Thanks!

-- 
Cyril Hrubis
chrubis@suse.cz