u-boot-imx: Add Congatec qmx6 support

Code based on imx6qsabrelite BSP. Patch originally written by Congatec
Linux team, based on the tag rel_imx_3.0.35_1.1.0 from Freescale's
uboot git.

Signed-off-by: Leo Sartre <lsartre@adeneo-embedded.com>
linux-imx-3.0.35: Add Congatec qmx6 support

Based on imx6qsabrelite BSP. Code originally written by Congatec Linux
team, based on the tag rel_imx_3.0.35_1.1.0 from Freescale's linux
git.

Signed-off-by: Leo Sartre <lsartre@adeneo-embedded.com>
cgtqmx6: Add machine definition

Conga-QEVAl board from Congatec using a Conga-QMX6 module (based on
Freescale's new i.MX6 ARM processor).

Further reading on the module:
http://www.congatec.com/en/products/qseven/dView/conga-qmx6.html

Further reading on the board:
http://www.congatec.com/en/products/accessories/dView/conga-qeval.html

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