button: Remove <common.h> and add needed includes

Remove <common.h> from this driver directory and when needed
add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>

drivers/button/button-adc.c

@@ -5,7 +5,6 @@
  * Author: Marek Szyprowski <m.szyprowski@samsung.com>
  */
 
-#include <common.h>
 #include <adc.h>
 #include <button.h>
 #include <log.h>