uboot-imx

Fix do_bootm_linux() so that multi-file images with FDT blob boot.

Fix incorrect blob address calculation in do_bootm_linux() that prevents
booting the kernel from a multi-file image (kernel + initrd + blob).

Also, make minor updates to the U-Boot's output and to the coding style.

Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>