Backport more test cases fixes from upstream, and add runsuite to the
ptests.
(From OE-Core rev: a6de5fa28fc90e0184d3d86822d06de5d93bbc44)
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>