After the mx6 config consolidation, 'save' command is no longer
recognized.
Pass the full command name 'saveenv' instead.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Provide instructions on how to upgrade U-boot in the eMMC.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>