efikamx: move and rename Efika MX directories and config files to prepare for new boards

* Move Efika MX Smarttop and Smartbook boards into a "genesi" vendor directory
* Rename efikamx -> mx51_efikamx since there is an mx53_efikamx and mx6_efikamx to come

Signed-off-by: Matt Sealey <matt@genesi-usa.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
7 files changed