u-boot-boundary: update to v2014.04 (srcrev 6d00ef4)

This patch updates U-Boot for Boundary Devices Nitrogen6x and
Nitrogen6_Lite boards to sync with the v2014.04 release from
up-stream.

This isn't a major release and upgrading isn't critical.

Release notes are on-line in this post:
	http://boundarydevices.com/u-boot-2014-04-release-mx6/

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
u-boot-script-boundary: Update to v2014.04 (srcrev 6d00ef4)

This patch updates the boot script for Boundary Devices
boards to sync with the U-Boot version.

The only functional change is commit c0508b4, which enables
boot from USB stick.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
nitrogen6x: Add support for i.MX6SDL CPU variants to SOC_FAMILY

The Nitrogen6x has options for i.MX6DL and i.MX6S, and
without mx6dl in the SOC_FAMILY, Dual-Lite/Solo features
of other components won't be built.

The problem triggering this patch is the firmware-imx package,
which will not install the Dual-Lite/Solo firmware for the
VPU (lib/firmware/vpu_fw_imx6d.bin).

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
cubox-i: remove extraneous colons from SOC_FAMILY

The SOC_FAMILY variable is a colon-separated list and
cubox-i had an extra colon.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>