software/kvm: fix md5sum

fixup ac38a241 (Increase maximum ISO size to 20GB in KVMs., 2024-06-07)

software/kvm/buildout.hash.cfg

@@ -83,7 +83,7 @@ md5sum = 12779e690aa8341da660d833e102e552
 
 [image-download-controller]
 filename = template/image-download-controller.py.in
-md5sum = 9636903e683e4712e313ca2c470cfb94
+md5sum = 527b1f287233c0329648411ae1b62087
 
 [image-download-config-creator]
 filename = template/image-download-config-creator.py.in