Loader.hs: set instance auto-repair policy in mergeData
Loader.hs: set instance auto-repair policy in mergeData

'getArPolicy' and 'setArPolicy' follow the precedence rules introduced in
b1eb71c: within an object, the most restrictive tag wins; across object,
the nearest tag wins.

Signed-off-by: Dato Simó <16293852a0900193fe70fa7d24f714f37ba99a56@google.com>
Reviewed-by: Iustin Pop <acf83a5274f31a43af6b914614365999469c1a31@google.com>

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