mfd: davinci_voicecodec: Tidyup header difinitions

mach/hardware.h is needed on C source code side, not header.
And struct davinci_vc is duplicated definition.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/davinci_voicecodec.c

@@ -32,6 +32,7 @@
 #include <sound/pcm.h>
 
 #include <linux/mfd/davinci_voicecodec.h>
+#include <mach/hardware.h>
 
 static const struct regmap_config davinci_vc_regmap = {
 	.reg_bits = 32,

include/linux/mfd/davinci_voicecodec.h

@@ -28,8 +28,6 @@
 #include <linux/mfd/core.h>
 #include <linux/platform_data/edma.h>
 
-#include <mach/hardware.h>
-
 struct regmap;
 
 /*
@@ -99,8 +97,6 @@ struct davinci_vcif {
 	dma_addr_t dma_rx_addr;
 };
 
-struct davinci_vc;
-
 struct davinci_vc {
 	/* Device data */
 	struct device *dev;