[PATCH] ppc: fix undefined reference to hweight32

Build fix for ppc

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 54a0a9b..3a3e302 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -19,6 +19,10 @@
 	bool
 	default y
 
+config GENERIC_HWEIGHT
+	bool
+	default y
+
 config GENERIC_CALIBRATE_DELAY
 	bool
 	default y