resource: Constify resource crosscheck APIs

Constify APIs: _contains(), _overlaps(), _intersection(), _union().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230912165312.402422-3-andriy.shevchenko@linux.intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>