sh: pfc: Shuffle PFC support core.

This follows the intc/clk changes and shuffles the PFC support code under
its own directory. This will facilitate better code sharing, and allow us
to trim down the exported interface by quite a margin.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

drivers/sh/Kconfig

@@ -1,20 +1,6 @@
 menu "SuperH / SH-Mobile Driver Options"
 
 source "drivers/sh/intc/Kconfig"
-
-comment "Pin function controller options"
-
-config SH_PFC
-	# XXX move off the gpio dependency
-	depends on GENERIC_GPIO
-	select GPIO_SH_PFC if ARCH_REQUIRE_GPIOLIB
-	def_bool y
-
-config GPIO_SH_PFC
-	tristate "SuperH PFC GPIO support"
-	depends on SH_PFC && GPIOLIB
-	help
-	  This enables support for GPIOs within the SoC's pin function
-	  controller.
+source "drivers/sh/pfc/Kconfig"
 
 endmenu