Delete the right log files in run-ptest so the tests can be executed
more than once.
Install config.h so the tests which examine the build configuration will
do the right thing, specifically this causes the tests using libblkid to
execute instead of skip.
Add missing RDEPENDS: mkswap and tune2fs binaries, loop and vfat kernel
modules.
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>
