Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on powerpc

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index b44b52c..fb75485 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -86,6 +86,7 @@
 	bool
 	default y
 	select ARCH_MIGHT_HAVE_PC_PARPORT
+	select ARCH_MIGHT_HAVE_PC_SERIO
 	select BINFMT_ELF
 	select OF
 	select OF_EARLY_FLATTREE