targetcontrol: add image_fstype argument to commands.runqemu
qemu runner picks up first fsimage type from the hard-coded
list of supported types. This makes it impossible to test
particular image type unless it's not ext4(first type in
the hardcoded list of types).
Added image_fstypes argument to commands.runqemu and QemuTarget
__init__ to specify type of the image to run qemu with.
This will be used to pass wic image type to test efi wic images.
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
