qemu: set CVE-2024-6505 to fixed

qemu: set CVE-2024-6505 to fixed

CVE patch was removed on last upgrade as fixing commit was backported to
stable 8.2.x branch.

NVD DB has this CVE as version-less (with "-").
So explicit status set is needed to mark it as fixed.

(From OE-Core rev: 64359ec3b60ae68d39c2e6444f903fd20e397cff)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Steve Sakoman <steve@sakoman.com>