rtc: ds1286: move header to linux/rtc

Move ds1286.h to rtc specific folder.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c
index 756e509f..ef75c34 100644
--- a/drivers/rtc/rtc-ds1286.c
+++ b/drivers/rtc/rtc-ds1286.c
@@ -16,7 +16,7 @@
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 #include <linux/bcd.h>
-#include <linux/ds1286.h>
+#include <linux/rtc/ds1286.h>
 #include <linux/io.h>
 #include <linux/slab.h>