Blackfin: SMP: add PM/CPU hotplug support

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 0bd26db..c0d6d96 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -250,6 +250,11 @@
 	depends on SMP
 	default 2 if BF561
 
+config HOTPLUG_CPU
+	bool "Support for hot-pluggable CPUs"
+	depends on SMP && HOTPLUG
+	default y
+
 config IRQ_PER_CPU
 	bool
 	depends on SMP
@@ -1130,7 +1135,6 @@
 endmenu
 
 menu "Power management options"
-	depends on !SMP
 
 source "kernel/power/Kconfig"