sh: mach-sdk7786: conditionally disable PIO support.

SDK7786 only supports PIO via the PCI I/O space, so we disable PIO
completely for the non-PCI case.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig
index 938e87d..fd6ddeb 100644
--- a/arch/sh/boards/Kconfig
+++ b/arch/sh/boards/Kconfig
@@ -154,6 +154,7 @@
 	bool "SDK7786"
 	depends on CPU_SUBTYPE_SH7786
 	select SYS_SUPPORTS_PCI
+	select NO_IOPORT if !PCI
 	help
 	  Select SDK7786 if configuring for a Renesas Technology Europe
 	  SH7786-65nm board.