qemu: Update to 5.2.0

qemu: Update to 5.2.0

- Update qemu from 5.0.0 to 5.2.0
- Changelogs for 5.1.0 and 5.2.0 available at https://wiki.qemu.org/ChangeLog/
- rootfile updated
- patch no longer needed as fix built into source. patch was not utilised
	for 5.0.0 version. Patch line was commented out in previous lfs

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Peter Müller <peter.mueller@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>