Use correct type for Dbus sensor interface in IPMI sensors YAML files

Dbus sensor interface 'xyz.openbmc_project.Sensor.Value' migrated
from int to double. Therefore all old 'int64_t' types in
"*-ipmi-sensor*.yaml" files for this interface should be changed to
'double'.

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
Change-Id: I150fc934783a78186cfff2e7405ca86bf24f21c4
1 file changed