GPIO: OMAP: move to drivers/gpio

Move OMAP GPIO driver to drivers/gpio.  Builds whenever
CONFIG_ARCH_OMAP=y.

Signed-off-by: Kevin Hilman <khilman@ti.com>
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index becef59..a6f1d42 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -19,6 +19,7 @@
 obj-$(CONFIG_GPIO_MC33880)	+= mc33880.o
 obj-$(CONFIG_GPIO_MCP23S08)	+= mcp23s08.o
 obj-$(CONFIG_GPIO_74X164)	+= 74x164.o
+obj-$(CONFIG_ARCH_OMAP)         += gpio-omap.o
 obj-$(CONFIG_GPIO_PCA953X)	+= pca953x.o
 obj-$(CONFIG_GPIO_PCF857X)	+= pcf857x.o
 obj-$(CONFIG_GPIO_PCH)		+= pch_gpio.o