message: update old docs on setting device parameters
diff: @@ -94,12 +94,11 @@ modules, such as distributed MPI device implementations.
  Once a device is created, you can call
  - void ospDeviceSet1i(OSPDevice, const char *id, int val);
  - void ospDeviceSetString(OSPDevice, const char *id, const char *val);
  - void ospDeviceSetVoidPtr(OSPDevice, const char *id, void *val);
  + void ospDeviceSetParam(OSPObject, const char *id, OSPDataType type, const void *mem);
  -to set parameters on the device. The following parameters can be set on
  -all devices:
  +to set parameters on the device. The semantics of setting parameters is
  +exactly the same as `ospSetParam`, which is documented below in the
  +[parameters] section. The following parameters can be set on all devices:
  ------ ------------ ----------------------------------------------------------
  Type Name Description
  