[PATCH] ppc64: Add CONFIG_HZ

While ppc64 has the CONFIG_HZ Kconfig option, it wasnt actually being
used.  Connect it up and set all platforms to 250Hz.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

include/asm-ppc64/param.h

@@ -1,6 +1,8 @@
 #ifndef _ASM_PPC64_PARAM_H
 #define _ASM_PPC64_PARAM_H
 
+#include <linux/config.h>
+
 /*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -9,7 +11,7 @@
  */
 
 #ifdef __KERNEL__
-# define HZ		1000		/* Internal kernel timer frequency */
+# define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
 # define USER_HZ	100		/* .. some user interfaces are in "ticks" */
 # define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
 #endif