habv4: tools: Avoid hardcoded CSF size for SPL targets

Currently it's not possible to authenticate the U-Boot proper of
mx6ul_14x14_evk_defconfig target:

Authenticate image from DDR location 0x877fffc0...
bad magic magic=0x0 length=0x00 version=0x3
bad length magic=0x0 length=0x00 version=0x3
bad version magic=0x0 length=0x00 version=0x3
spl: ERROR:  image authentication fail

Commit 0633e13478 ("imx: hab: Increase CSF_SIZE for i.MX6 and
i.MX7 devices") has increased CSF_SIZE to avoid a possible issue
when booting encrypted boot images.

Commit d21bd69b6e ("tools: mkimage: add firmware-ivt image type
for HAB verification") is hardcoding the CSF and IVT sizes, the
new CSF size is not being considered and u-boot-ivt.img fails to
boot.

Avoid hardcoded CSF and IVT size to fix this issue.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>

common/image.c

@@ -61,6 +61,8 @@ static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
 #endif /* !USE_HOSTCC*/
 
 #include <u-boot/crc.h>
+#include <imximage.h>
+#include <generated/autoconf.h>
 
 #ifndef CONFIG_SYS_BARGSIZE
 #define CONFIG_SYS_BARGSIZE 512
@@ -378,9 +380,9 @@ void image_print_contents(const void *ptr)
 		}
 	} else if (image_check_type(hdr, IH_TYPE_FIRMWARE_IVT)) {
 		printf("HAB Blocks:   0x%08x   0x0000   0x%08x\n",
-				image_get_load(hdr) - image_get_header_size(),
-				image_get_size(hdr) + image_get_header_size()
-						- 0x1FE0);
+			image_get_load(hdr) - image_get_header_size(),
+			(int)(image_get_size(hdr) + image_get_header_size()
+			+ sizeof(flash_header_v2_t) - CONFIG_CSF_SIZE));
 	}
 }