dm: core: Create a new header file for 'compat' features

At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/i2c/at91_i2c.c

@@ -5,6 +5,7 @@
  * (C) Copyright 2016 Songjun Wu <songjun.wu@atmel.com>
  */
 
+#include <malloc.h>
 #include <asm/io.h>
 #include <common.h>
 #include <clk.h>

drivers/i2c/designware_i2c.c

@@ -8,10 +8,12 @@
 #include <clk.h>
 #include <dm.h>
 #include <i2c.h>
+#include <malloc.h>
 #include <pci.h>
 #include <reset.h>
 #include <asm/io.h>
 #include "designware_i2c.h"
+#include <dm/device_compat.h>
 #include <linux/err.h>
 
 #ifdef CONFIG_SYS_I2C_DW_ENABLE_STATUS_UNSUPPORTED

drivers/i2c/i2c-uniphier-f.c

@@ -5,6 +5,7 @@
  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
  */
 
+#include <dm/device_compat.h>
 #include <linux/errno.h>
 #include <linux/io.h>
 #include <linux/iopoll.h>

drivers/i2c/i2c-uniphier.c

@@ -5,6 +5,7 @@
  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
  */
 
+#include <dm/device_compat.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/io.h>

drivers/i2c/imx_lpi2c.c

@@ -13,6 +13,7 @@
 #include <dm.h>
 #include <fdtdec.h>
 #include <i2c.h>
+#include <dm/device_compat.h>
 
 #define LPI2C_FIFO_SIZE 4
 #define LPI2C_NACK_TOUT_MS 1

drivers/i2c/muxes/i2c-arb-gpio-challenge.c

@@ -8,6 +8,7 @@
 #include <dm.h>
 #include <errno.h>
 #include <i2c.h>
+#include <malloc.h>
 #include <asm/gpio.h>
 
 DECLARE_GLOBAL_DATA_PTR;

drivers/i2c/muxes/i2c-mux-gpio.c

@@ -11,6 +11,7 @@
 #include <asm-generic/gpio.h>
 #include <common.h>
 #include <dm.h>
+#include <dm/device_compat.h>
 #include <dm/devres.h>
 #include <dm/pinctrl.h>
 #include <fdtdec.h>

drivers/i2c/muxes/i2c-mux-uclass.c

@@ -8,6 +8,7 @@
 #include <dm.h>
 #include <errno.h>
 #include <i2c.h>
+#include <malloc.h>
 #include <dm/lists.h>
 #include <dm/root.h>
 

drivers/i2c/muxes/pca954x.c

@@ -9,6 +9,7 @@
 #include <dm.h>
 #include <errno.h>
 #include <i2c.h>
+#include <malloc.h>
 
 #include <asm-generic/gpio.h>
 

drivers/i2c/mxc_i2c.c

@@ -16,6 +16,7 @@
 #include <common.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/imx-regs.h>
+#include <dm/device_compat.h>
 #include <linux/errno.h>
 #include <asm/mach-imx/mxc_i2c.h>
 #include <asm/io.h>

drivers/i2c/rcar_i2c.c

@@ -17,6 +17,7 @@
 #include <i2c.h>
 #include <asm/io.h>
 #include <wait_bit.h>
+#include <dm/device_compat.h>
 
 #define RCAR_I2C_ICSCR			0x00 /* slave ctrl */
 #define RCAR_I2C_ICMCR			0x04 /* master ctrl */

drivers/i2c/stm32f7_i2c.c

@@ -7,6 +7,7 @@
 #include <clk.h>
 #include <dm.h>
 #include <i2c.h>
+#include <malloc.h>
 #include <reset.h>
 
 #include <dm/device.h>

drivers/i2c/xilinx_xiic.c

@@ -15,6 +15,7 @@
 #include <i2c.h>
 #include <wait_bit.h>
 #include <asm/io.h>
+#include <dm/device_compat.h>
 
 struct xilinx_xiic_priv {
 	void __iomem		*base;