This patch add the MX53 boot image support.

This patch has been tested on Freescale MX53EVK board
and MX51EVK board.

Signed-off-by: Jason Liu <r64343@freescale.com>

Coding style cleanup, update CHANGELOG.

Signed-off-by: Wolfgang Denk <wd@denx.de>

This patch adds support for "imximage" (MX Boot Image)
to the mkimage utility. The imximage is used on the Freescales's
MX.25, MX.35 and MX.51 processors.

Further details under doc/README.imximage.

This patch was tested on a Freescale mx51evk board.

Signed-off-by: Stefano Babic <sbabic@denx.de>