instance_info now returns vcpus
instance_info now returns vcpus

instance_info and all_instances_info calls had different per-instance
return types, this commit fixes the mismatch.

Signed-off-by: Agata Murawska <4c8886dbe342c6966e25105100cfee09458faa93@google.com>
Reviewed-by: Iustin Pop <acf83a5274f31a43af6b914614365999469c1a31@google.com>

mbakke/ganeti,andir/ganeti,grnet/snf-ganeti,yiannist/ganeti,grnet/snf-ganeti,yiannist/ganeti,leshchevds/ganeti,andir/ganeti,mbakke/ganeti,ganeti/ganeti,andir/ganeti,mbakke/ganeti,bitemyapp/ganeti,leshchevds/ganeti,dimara/ganeti,onponomarev/ganeti,ganeti/ganeti,bitemyapp/ganeti,apyrgio/snf-ganeti,dimara/ganeti,ganeti-github-testing/ganeti-test-1,apyrgio/ganeti,ganeti-github-testing/ganeti-test-1,apyrgio/ganeti,ganeti/ganeti,onponomarev/ganeti,apyrgio/snf-ganeti,leshchevds/ganeti,yiannist/ganeti