imx: hab: Use size parameter

The current code works by sheer coincidence, because (see HABv4 API
documentation, section 3.4) the RVT authenticate_image call updates
the size that is passed in with the actual size ROM code pulls from
IVT/CSF . So if the input size is larger, that is "fine" . Pass in
size instead to make this really correct.

Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/arch/arm/mach-imx/spl.c b/arch/arm/mach-imx/spl.c
index 6c13b00..b30cd96 100644
--- a/arch/arm/mach-imx/spl.c
+++ b/arch/arm/mach-imx/spl.c
@@ -353,7 +353,7 @@
 	debug("%s: ivt: %p offset: %lx size: %lx\n", __func__, ivt, offset, size);
 	debug("%s: ivt self: %x\n", __func__, ivt->self);
 
-	if (imx_hab_authenticate_image((uintptr_t)fit, (uintptr_t)ivt, offset))
+	if (imx_hab_authenticate_image((uintptr_t)fit, (uintptr_t)size, offset))
 		panic("spl: ERROR: image authentication unsuccessful\n");
 
 	return (void *)fit;