u-boot-imx: update Congatec qmx6 support to bsp 4.0

Cleanup and adapting patch from congatec team to match.
Patch now apply to Freescale's bsp4.0.

Change-Id: I7d7b32342b35f9f6dc0966b2fecc97a1d91ae83c
Signed-off-by: Leo Sartre <lsartre@adeneo-embedded.com>
linux-imx-3.0.35: update Congatec qmx6 support to bsp 4.0

Cleanup and adapting patch from congatec team.
Patch now apply to Freescale's bsp4.0

Change-Id: Ibe7e93d9dac5a2de38ec7c5ce274c3e83c270ec0
Signed-off-by: Leo Sartre <lsartre@adeneo-embedded.com>