drivers/power: Add module.h to the actual modules in drivers/power

The module.h header is no longer going to be implicitly present
everywhere. So real modular users need to call out its use
explicitly in advance.

[v2: add new users reported by Randy Dunlap <[e-mail]>]

Signed-off-by: Paul Gortmaker <[e-mail]>

drivers/power/max17042_battery.c

···
  */
 
 #include <linux/init.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
 #include <linux/mod_devicetable.h>

drivers/power/max8903_charger.c

···
 
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/power_supply.h>
 #include <linux/platform_device.h>

drivers/power/max8997_charger.c

···
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/module.h>
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/slab.h>

drivers/power/max8998_charger.c

···
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/module.h>
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/slab.h>