mfd: syscon: Fix warnings when printing resource_size_t

Gets rid of these warnings when compile module for 64 bit targets:
CC drivers/mfd/syscon.o
drivers/mfd/syscon.c: In function 'syscon_probe':
drivers/mfd/syscon.c:155:2: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'resource_size_t' [-Wformat]
drivers/mfd/syscon.c:155:2: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' [-Wformat]

Signed-off-by: Alexander Shiyan <[e-mail]>
Signed-off-by: Samuel Ortiz <[e-mail]>

drivers/mfd/syscon.c

···
 
 	platform_set_drvdata(pdev, syscon);
 
-	dev_info(dev, "regmap 0x%x-0x%x registered\n", res->start, res->end);
+	dev_info(dev, "regmap %pR registered\n", res);
 
 	return 0;
 }