sh: Update shmin to reflect PIO dependency.

shmin uses __set_io_port_base() for legacy I/O mapping that ethernet and
other SuperI/O functions depend on. Ensure that PIO support is built in
until the board is updated for MMIO properly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index b44e377..a164c9e 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -167,7 +167,7 @@
 
 config NO_IOPORT
 	def_bool !PCI
-	depends on !SH_CAYMAN && !SH_SH4202_MICRODEV
+	depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN
 
 config IO_TRAPPED
 	bool