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/console/die.c

@@ -20,8 +20,8 @@
  */
 
 #include <arch/io.h>
-#include <arch/hlt.h>
 #include <console/console.h>
+#include <halt.h>
 
 #ifndef __ROMCC__
 #define NORETURN __attribute__((noreturn))
@@ -33,7 +33,5 @@
 void NORETURN die(const char *msg)
 {
 	print_emerg(msg);
-	do {
-		hlt();
-	} while(1);
+	halt();
 }