sh: GPIO and pinmux base code

This patch adds gpio code together with the pinmux table parser.
In the future we should optimize this and switch back to gpiolib.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index dca54cc..b4aa2a0 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -59,6 +59,9 @@
 config GENERIC_IRQ_PROBE
 	def_bool y
 
+config GENERIC_GPIO
+	def_bool n
+
 config GENERIC_CALIBRATE_DELAY
 	bool