Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on ARM/Footbridge

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>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
diff --git a/arch/arm/mach-footbridge/Kconfig b/arch/arm/mach-footbridge/Kconfig
index 0f2111a..fba55fb 100644
--- a/arch/arm/mach-footbridge/Kconfig
+++ b/arch/arm/mach-footbridge/Kconfig
@@ -85,6 +85,7 @@
 # Footbridge in host mode
 config FOOTBRIDGE_HOST
 	bool
+	select ARCH_MIGHT_HAVE_PC_SERIO
 
 # Footbridge in addin mode
 config FOOTBRIDGE_ADDIN