CA-118130: Allow a domain to write to /local/domain/<domid>/hvmloader
CA-118130: Allow a domain to write to /local/domain/<domid>/hvmloader

Signed-off-by: 0cdc4ee8d3b1f197f2d15aa3e695b726b3a065b5@citrix.com

simonjbeaumont/xenopsd,koushikcgit/xenopsd,euanh/xenopsd,djs55/xenopsd,cheng--zhang/xenopsd,thomassa/xenopsd,johnelse/xenopsd,djs55/xenopsd-previous,simonjbeaumont/xenopsd,cheng--zhang/xenopsd,djs55/xenopsd-previous,thomassa/xenopsd,euanh/xenopsd,johnelse/xenopsd,cheng--zhang/xenopsd,euanh/xenopsd,thomassa/xenopsd,djs55/xenopsd-previous,koushikcgit/xenopsd,koushikcgit/xenopsd,johnelse/xenopsd,djs55/xenopsd,djs55/xenopsd,simonjbeaumont/xenopsd