[POWERPC] Disable power management for arch/ppc

Currently the prep_defconfig in arch/ppc won't build due to swsusp
being broken.  This patch avoids the problem by essentially disabling
all power management on those platforms left in arch/ppc.

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

arch/ppc/Kconfig

@@ -1016,7 +1016,7 @@ config CMDLINE
 	  some command-line options at build time by entering them here.  In
 	  most cases you will need to specify the root device here.
 
-if !44x || BROKEN
+if BROKEN
 source kernel/power/Kconfig
 endif