[IA64] sn2_defconfig: disable hotplug cpu

Looks like there are some bugs that won't be fixed before 2.6.9 in the
scheduling domain code wrt HOTPLUG_CPU, so I'm disabling it in sn2_defconfig
(we don't support CPU hotplug just yet anyway).
Signed-off-by: Jesse Barnes <jbarnes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/configs/sn2_defconfig

 #
 # Automatically generated make config: don't edit
 # Linux kernel version: 2.6.9-rc2
-# Fri Sep 17 13:58:32 2004
+# Fri Sep 24 08:59:00 2004
 #
 
 #
@@ -79,7 +79,7 @@ CONFIG_IA64_SGI_SN_SIM=y
 CONFIG_FORCE_MAX_ZONEORDER=18
 CONFIG_SMP=y
 CONFIG_NR_CPUS=512
-CONFIG_HOTPLUG_CPU=y
+# CONFIG_HOTPLUG_CPU is not set
 CONFIG_PREEMPT=y
 CONFIG_HAVE_DEC_LOCK=y
 CONFIG_IA32_SUPPORT=y