Replace hlt with halt()

There were instances of unneeded arch/hlt.h includes,
various hlt() calls that weren't supposed to exit (but
might have) and various forms of endless loops around
hlt() calls.

All these are sorted out now: unnecessary includes are
dropped, hlt() is uniformly replaced with halt() (except
in assembly, obviously).

Change-Id: I3d38fed6e8d67a28fdeb17be803d8c4b62d383c5
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/7608
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
diff --git a/src/southbridge/intel/lynxpoint/me_9.x.c b/src/southbridge/intel/lynxpoint/me_9.x.c
index c8ff913..dfed6de 100644
--- a/src/southbridge/intel/lynxpoint/me_9.x.c
+++ b/src/southbridge/intel/lynxpoint/me_9.x.c
@@ -28,7 +28,6 @@
  */
 
 #include <arch/acpi.h>
-#include <arch/hlt.h>
 #include <arch/io.h>
 #include <console/console.h>
 #include <device/device.h>
@@ -38,6 +37,7 @@
 #include <string.h>
 #include <delay.h>
 #include <elog.h>
+#include <halt.h>
 
 #include "me.h"
 #include "pch.h"
@@ -563,7 +563,7 @@
 	printk(BIOS_NOTICE, "ME: %s\n", __FUNCTION__);
 	if (mei_sendrecv_mkhi(&mkhi, &reset, sizeof(reset), NULL, 0) < 0) {
 		/* No response means reset will happen shortly... */
-		hlt();
+		halt();
 	}
 
 	/* If the ME responded it rejected the reset request */