CA-108189: Prevent timeouts when collecting bugtools

Prevent timeouts when collecting bugtools by increasing the timeout for
the xenopsd bugtool plugin from 60 seconds to 600 seconds.  Since it
took about 200 seconds for 460 VMs, 600 seconds should be enough for
very large hosts.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Merge pull request #1875 from rosslagerwall/bugtool-timeout

CA-108189: Prevent timeouts when collecting bugtools