boot/uboot: add option to build u-boot.itb image

It allows you to add the u-boot.itb to the list of U-Boot images that
can be created. Like the others, this one is also copied to the image
folder.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

boot/uboot/Config.in

@@ -225,6 +225,9 @@ config BR2_TARGET_UBOOT_FORMAT_DTB_IMX
 config BR2_TARGET_UBOOT_FORMAT_IMG
 	bool "u-boot.img"
 
+config BR2_TARGET_UBOOT_FORMAT_ITB
+	bool "u-boot.itb"
+
 config BR2_TARGET_UBOOT_FORMAT_IMX
 	bool "u-boot.imx"
 

boot/uboot/uboot.mk

@@ -85,6 +85,11 @@ UBOOT_BINS += u-boot.img
 UBOOT_MAKE_TARGET += u-boot.img
 endif
 
+ifeq ($(BR2_TARGET_UBOOT_FORMAT_ITB),y)
+UBOOT_BINS += u-boot.itb
+UBOOT_MAKE_TARGET += u-boot.itb
+endif
+
 ifeq ($(BR2_TARGET_UBOOT_FORMAT_IMX),y)
 UBOOT_BINS += u-boot.imx
 UBOOT_MAKE_TARGET += u-boot.imx