sunxi: Add CONFIG_MACH_TYPE defines to sun4i, sun5i and sun7i

Many people are still using old linux-sunxi-3.4 kernels on sunxi devices,
adding the proper MACH_TYPE defines for this allows people to switch to
upstream u-boot, so that we can stop maintaining the linux-sunxi u-boot fork.

These machine-ids are all properly registered at:

http://www.arm.linux.org.uk/developer/machines/

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

include/configs/sun4i.h

@@ -15,6 +15,7 @@
 #define CONFIG_CLK_FULL_SPEED		1008000000
 
 #define CONFIG_SYS_PROMPT		"sun4i# "
+#define CONFIG_MACH_TYPE		4104
 
 #ifdef CONFIG_USB_EHCI
 #define CONFIG_USB_EHCI_SUNXI

include/configs/sun5i.h

@@ -15,6 +15,7 @@
 #define CONFIG_CLK_FULL_SPEED		1008000000
 
 #define CONFIG_SYS_PROMPT		"sun5i# "
+#define CONFIG_MACH_TYPE		4138
 
 #ifdef CONFIG_USB_EHCI
 #define CONFIG_USB_EHCI_SUNXI

include/configs/sun7i.h

@@ -16,6 +16,7 @@
 #define CONFIG_CLK_FULL_SPEED		912000000
 
 #define CONFIG_SYS_PROMPT		"sun7i# "
+#define CONFIG_MACH_TYPE		4283
 
 #ifdef CONFIG_USB_EHCI
 #define CONFIG_USB_EHCI_SUNXI