Add reboot/halt/poweroff/suspend commands to Finit API

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/reboot.c

@@ -27,13 +27,8 @@
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/reboot.h>
 #include "util.h"
 
-#ifndef RB_SW_SUSPEND /* Since Linux 2.5.18, but not in GLIBC until 2.19 */
-#define RB_SW_SUSPEND	0xd000fce2
-#endif
-
 typedef enum {
 	CMD_UNKNOWN = -1,
 	CMD_REBOOT = 0,