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>

common/android_ab.c

@@ -5,6 +5,7 @@
 #include <common.h>
 #include <android_ab.h>
 #include <android_bootloader_message.h>
+#include <malloc.h>
 #include <linux/err.h>
 #include <memalign.h>
 #include <u-boot/crc.h>

common/autoboot.c

@@ -13,6 +13,7 @@
 #include <env.h>
 #include <fdtdec.h>
 #include <hash.h>
+#include <malloc.h>
 #include <memalign.h>
 #include <menu.h>
 #include <post.h>

common/image-fdt.c

@@ -14,6 +14,7 @@
 #include <env.h>
 #include <errno.h>
 #include <image.h>
+#include <malloc.h>
 #include <linux/libfdt.h>
 #include <mapmem.h>
 #include <asm/io.h>

common/image.c

@@ -10,6 +10,7 @@
 #include <common.h>
 #include <cpu_func.h>
 #include <env.h>
+#include <malloc.h>
 #include <u-boot/crc.h>
 #include <watchdog.h>
 

common/usb.c

@@ -28,6 +28,7 @@
 #include <common.h>
 #include <command.h>
 #include <dm.h>
+#include <malloc.h>
 #include <memalign.h>
 #include <asm/processor.h>
 #include <linux/compiler.h>

common/usb_hub.c

@@ -26,6 +26,7 @@
 #include <dm.h>
 #include <env.h>
 #include <errno.h>
+#include <malloc.h>
 #include <memalign.h>
 #include <asm/processor.h>
 #include <asm/unaligned.h>