As agreed upon in the bug triage meeting, disable mdadm ptest for the time being
Related: [Yocto #15181] [Yocto #15159] [Yocto #15308] [Yocto #15309]
(From OE-Core rev: ebbe9458526546b821d81a89d8098355d943ee60)
Signed-off-by: Pavel Zhukov <pavel@zhukoff.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 22ae573aa1a1244d4dea498d4fa4fcdf195bedf8)
Signed-off-by: Steve Sakoman <steve@sakoman.com>