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/northbridge/intel/sandybridge/raminit.c b/src/northbridge/intel/sandybridge/raminit.c
index d2ae4b0..f6c92db 100644
--- a/src/northbridge/intel/sandybridge/raminit.c
+++ b/src/northbridge/intel/sandybridge/raminit.c
@@ -21,7 +21,6 @@
 #include <console/usb.h>
 #include <bootmode.h>
 #include <string.h>
-#include <arch/hlt.h>
 #include <arch/io.h>
 #include <cbmem.h>
 #include <arch/cbfs.h>
@@ -29,6 +28,7 @@
 #include <ip_checksum.h>
 #include <pc80/mc146818rtc.h>
 #include <device/pci_def.h>
+#include <halt.h>
 #include "raminit.h"
 #include "pei_data.h"
 #include "sandybridge.h"
@@ -239,7 +239,7 @@
 	if (pei_data->boot_mode == 2 && !pei_data->mrc_input) {
 		printk(BIOS_DEBUG, "Giving up in sdram_initialize: No MRC data\n");
 		outb(0x6, 0xcf9);
-		hlt();
+		halt();
 	}
 
 	/* Pass console handler in pei_data */