drivers/dma/ppc4xx: Use printf extension %pR for struct resource

Using %pR standardizes the struct resource output.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 0d58a4a..cef5845 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -4449,9 +4449,8 @@
 
 	if (!request_mem_region(res.start, resource_size(&res),
 				dev_driver_string(&ofdev->dev))) {
-		dev_err(&ofdev->dev, "failed to request memory region "
-			"(0x%016llx-0x%016llx)\n",
-			(u64)res.start, (u64)res.end);
+		dev_err(&ofdev->dev, "failed to request memory region %pR\n",
+			&res);
 		initcode = PPC_ADMA_INIT_MEMREG;
 		ret = -EBUSY;
 		goto out;