dm: rename device struct to udevice

using UBI and DM together leads in compiler error, as
both define a "struct device", so rename "struct device"
in include/dm/device.h to "struct udevice", as we use
linux code (MTD/UBI/UBIFS some USB code,...) and cannot
change the linux "struct device"

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Marek Vasut <marex@denx.de>
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index e325df4..a6e52a0 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -86,7 +86,7 @@
 	GPIOF_UNKNOWN,
 };
 
-struct device;
+struct udevice;
 
 /**
  * struct struct dm_gpio_ops - Driver model GPIO operations
@@ -116,15 +116,15 @@
  * all devices. Be careful not to confuse offset with gpio in the parameters.
  */
 struct dm_gpio_ops {
-	int (*request)(struct device *dev, unsigned offset, const char *label);
-	int (*free)(struct device *dev, unsigned offset);
-	int (*direction_input)(struct device *dev, unsigned offset);
-	int (*direction_output)(struct device *dev, unsigned offset,
+	int (*request)(struct udevice *dev, unsigned offset, const char *label);
+	int (*free)(struct udevice *dev, unsigned offset);
+	int (*direction_input)(struct udevice *dev, unsigned offset);
+	int (*direction_output)(struct udevice *dev, unsigned offset,
 				int value);
-	int (*get_value)(struct device *dev, unsigned offset);
-	int (*set_value)(struct device *dev, unsigned offset, int value);
-	int (*get_function)(struct device *dev, unsigned offset);
-	int (*get_state)(struct device *dev, unsigned offset, char *state,
+	int (*get_value)(struct udevice *dev, unsigned offset);
+	int (*set_value)(struct udevice *dev, unsigned offset, int value);
+	int (*get_function)(struct udevice *dev, unsigned offset);
+	int (*get_state)(struct udevice *dev, unsigned offset, char *state,
 			 int maxlen);
 };
 
@@ -166,7 +166,7 @@
  * @offset_count: Returns number of GPIOs within this bank
  * @return bank name of this device
  */
-const char *gpio_get_bank_info(struct device *dev, int *offset_count);
+const char *gpio_get_bank_info(struct udevice *dev, int *offset_count);
 
 /**
  * gpio_lookup_name - Look up a GPIO name and return its details
@@ -179,7 +179,7 @@
  * @offsetp: Returns the offset number within this device
  * @gpiop: Returns the absolute GPIO number, numbered from 0
  */
-int gpio_lookup_name(const char *name, struct device **devp,
+int gpio_lookup_name(const char *name, struct udevice **devp,
 		     unsigned int *offsetp, unsigned int *gpiop);
 
 #endif	/* _ASM_GENERIC_GPIO_H_ */