Moved the print statement till after the K_CLAIM flag check after

Moved the print statement till after the K_CLAIM flag check after
this bug report (snippet):

> From: "Christos Karayiannis" <christos@kar.forthnet.gr>
> To: <bugs@minix3.org>
> Date: Tue, 20 Dec 2005 16:22:49 +0200
> Subject: bootimage.c
>
> Hi,
>
> at exec_image() of bootimage.c the a_bss and a_stack are printed with
> some values and then, if the K_CLAIM flag is set, they become zero. But
> this is then wrong information.