configs: add Freescale i.MX 6SoloLite EVK support

i.MX6 SoloLite EVK is Freescale's evaluation board based on
the i.MX6 SoloLite applications processor.

This defconfig is based off Freescale "official" git repo on git.freescale.com
and SW release 3.0.35_4.1.0.

[Peter: comment defconfig]
Signed-off-by: Gilles Talis <gilles.talis@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>