ARM: davinci: move private EDMA API to arm/common

Move mach-davinci/dma.c to common/edma.c so it can be used
by OMAP (specifically AM33xx) as well.

Signed-off-by: Matt Porter <mporter@ti.com>
Acked-by: Chris Ball <cjb@laptop.org> # davinci_mmc.c
Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
[nsekhar@ti.com: dropped davinci sffsdr changes]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 49d993c..b1c66a4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -840,6 +840,7 @@
 	select GENERIC_IRQ_CHIP
 	select HAVE_IDE
 	select NEED_MACH_GPIO_H
+	select TI_PRIV_EDMA
 	select USE_OF
 	select ZONE_DMA
 	help