The "read array" variants of the device property functions
can be used to return the number of values in an array.
Update the comments to reflect that.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>