rtc: Fix module autoload for rtc-{ab8500,max8997,s5m} drivers

These platform drivers have a platform device ID table but the module
alias information is not created so module autoloading will not work.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c
index 133d2e2..8537d1e 100644
--- a/drivers/rtc/rtc-ab8500.c
+++ b/drivers/rtc/rtc-ab8500.c
@@ -446,6 +446,7 @@
 	{ "ab8500-rtc", (kernel_ulong_t)&ab8500_rtc_ops, },
 	{ "ab8540-rtc", (kernel_ulong_t)&ab8540_rtc_ops, },
 };
+MODULE_DEVICE_TABLE(platform, ab85xx_rtc_ids);
 
 static int ab8500_rtc_probe(struct platform_device *pdev)
 {