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/mainboard/google/link/romstage.c

@@ -40,6 +40,7 @@
 #include <arch/cpu.h>
 #include <cpu/x86/bist.h>
 #include <cpu/x86/msr.h>
+#include <halt.h>
 #include "gpio.h"
 #if CONFIG_CHROMEOS
 #include <vendorcode/google/chromeos/chromeos.h>
@@ -191,7 +192,7 @@ void main(unsigned long bist)
 		/* System is not happy after keyboard reset... */
 		printk(BIOS_DEBUG, "Issuing CF9 warm reset\n");
 		outb(0x6, 0xcf9);
-		hlt();
+		halt();
 	}
 
 	/* Perform some early chipset initialization required
@@ -241,7 +242,7 @@ void main(unsigned long bist)
 	if (boot_mode==2 && !cbmem_was_initted) {
 		/* Failed S3 resume, reset to come up cleanly */
 		outb(0x6, 0xcf9);
-		hlt();
+		halt();
 	}
 	northbridge_romstage_finalize(boot_mode==2);