Makefile: Build firmware-ivt image type for HAB verification also for mx7

Create u-boot-ivt.img and u-boot-ivt.img.log when building U-Boot
with SPL and Secure Boot enabled for imx7 (like it is done for imx6).

See commit d21bd69b for more info.
Signed-off-by: NEran Matityahu <eran.m@variscite.com>

Makefile

@@ -781,8 +781,12 @@ ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 else
+ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
+ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
+else
 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 endif
+endif
 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
 ifeq ($(CONFIG_SPL_FRAMEWORK),y)