driver core: Cast to (void *) with __force for __percpu pointer

Sparse is not happy:

  drivers/base/devres.c:1230:9: warning: cast removes address space '__percpu' of expression

Use __force attribute to make it happy.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210401171030.60527-1-andriy.shevchenko@linux.intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/devres.c

@@ -1228,6 +1228,6 @@ EXPORT_SYMBOL_GPL(__devm_alloc_percpu);
 void devm_free_percpu(struct device *dev, void __percpu *pdata)
 {
 	WARN_ON(devres_destroy(dev, devm_percpu_release, devm_percpu_match,
-			       (void *)pdata));
+			       (__force void *)pdata));
 }
 EXPORT_SYMBOL_GPL(devm_free_percpu);