[POWERPC] Move I8259 selection under MPC8641HPCN board

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index 3a87863..3d2b21a 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -7,6 +7,7 @@
 
 config MPC8641_HPCN
 	bool "Freescale MPC8641 HPCN"
+	select PPC_I8259
 	help
 	  This option enables support for the MPC8641 HPCN board.