auxdisplay: linedisp: Add missing header(s)

Do not imply that some of the generic headers may be always included.
Instead, include explicitly what we are direct user of.
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/auxdisplay/line-display.c

@@ -10,8 +10,11 @@
 
 #include <generated/utsrelease.h>
 
+#include <linux/container_of.h>
 #include <linux/device.h>
+#include <linux/export.h>
 #include <linux/idr.h>
+#include <linux/jiffies.h>
 #include <linux/kstrtox.h>
 #include <linux/module.h>
 #include <linux/slab.h>

drivers/auxdisplay/line-display.h

@@ -11,6 +11,9 @@
 #ifndef _LINEDISP_H
 #define _LINEDISP_H
 
+#include <linux/device.h>
+#include <linux/timer_types.h>
+
 /**
  * struct linedisp - character line display private data structure
  * @dev: the line display device