[PATCH] ppc32: compilation failure on ppc32

This fixes compilation on ppc32.

The power/smp.o file should be linked only if both SMP and SWSUSPEND
are configured in. It used to do it even without SWSUSPEND.

kernel/power/Makefile

+
+swsusp-smp-$(CONFIG_SMP)	+= smp.o
+
 obj-y				:= main.o process.o console.o pm.o
-obj-$(CONFIG_SMP)		+= smp.o
-obj-$(CONFIG_SOFTWARE_SUSPEND)	+= swsusp.o
+obj-$(CONFIG_SOFTWARE_SUSPEND)	+= swsusp.o $(swsusp-smp-y)
 obj-$(CONFIG_PM_DISK)		+= disk.o pmdisk.o
 
 obj-$(CONFIG_MAGIC_SYSRQ)	+= poweroff.o