Replace hlt() loops with halt()

Change-Id: I8486e70615f4c404a342cb86963b5357a934c41d
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/7606
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

src/soc/intel/broadwell/reset.c

@@ -18,8 +18,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include <arch/hlt.h>
 #include <arch/io.h>
+#include <halt.h>
 #include <reset.h>
 #include <broadwell/reset.h>
 
@@ -45,7 +45,5 @@ void hard_reset(void)
 void reset_system(void)
 {
 	hard_reset();
-	while (1) {
-		hlt();
-	}
+	halt();
 }