imx: hab: Fix a couple of build warnings with DEBUG enabled

In case the DEBUG is enabled, these three lines warn about cast of
pointer to integer of different size, add the missing casts to fix
the warnings.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>