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 d21bd69b6e95ca7824941e7f527871cd5c63c7f7 for more info.

Signed-off-by: Eran Matityahu <eran.m@variscite.com>
diff --git a/Makefile b/Makefile
index c6819d5..6eb30a3 100644
--- a/Makefile
+++ b/Makefile
@@ -781,8 +781,12 @@
 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)