[IA64] Fix build for sim_defconfig

Commit bdc80787 broke the build
for this config because the sim_defconfig selects CONFIG_HZ=250
but include/asm-ia64/param.h has an ifdef for the simulator to
force HZ to 32.  So we ended up with a kernel/timeconst.h set
for HZ=250 ... which then failed the check for the right HZ
value and died with:

Drop the #ifdef magic from param.h and make force CONFIG_HZ=32
directly for the simulator.
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/Kconfig

@@ -232,7 +232,14 @@ config PGTABLE_4
 
 endchoice
 
+if IA64_HP_SIM
+config HZ
+	default 32
+endif
+
+if !IA64_HP_SIM
 source kernel/Kconfig.hz
+endif
 
 config IA64_BRL_EMU
 	bool

include/asm-ia64/param.h

@@ -19,15 +19,7 @@
 #define MAXHOSTNAMELEN	64	/* max length of hostname */
 
 #ifdef __KERNEL__
-# ifdef CONFIG_IA64_HP_SIM
-  /*
-   * Yeah, simulating stuff is slow, so let us catch some breath between
-   * timer interrupts...
-   */
-#  define HZ	  32
-# else
-#  define HZ	CONFIG_HZ
-# endif
+# define HZ		CONFIG_HZ
 # define USER_HZ	HZ
 # define CLOCKS_PER_SEC	HZ	/* frequency at which times() counts */
 #else