disks: get: add osdid-list return parameter

It is possible to run multiple OSD daemons on one disk. The new
'osdid-list' parameter returns an array of all OSD IDs found on the
disk.

The old 'osdid' parameter is kept for compatibility. We might want to
deprecate / remove it in the future.

Signed-off-by: Aaron Lauterer <a.lauterer@proxmox.com>

src/PVE/API2/Disks.pm

@@ -124,7 +124,11 @@ __PACKAGE__->register_method ({
 		gpt => { type => 'boolean' },
 		mounted => { type => 'boolean' },
 		size => { type => 'integer'},
-		osdid => { type => 'integer'},
+		osdid => { type => 'integer'}, # TODO: deprecate / remove in PVE 9?
+		'osdid-list' => {
+		    type => 'array',
+		    items => { type => 'integer' },
+		},
 		vendor =>  { type => 'string', optional => 1 },
 		model =>  { type => 'string', optional => 1 },
 		serial =>  { type => 'string', optional => 1 },