sunxi-tools: Fix typo in the directory name

Signed-off-by: Tomas Novotny <novotny@rehivetech.com>
sunxi-tools: Fix build of sunxi-tools-native

Also add missing newline at the eof.

Signed-off-by: Tomas Novotny <novotny@rehivetech.com>
Add ability to put the compiled fex file into the SD image

There is a new recipe called sunxi-board-fex which cares about the
compiling of the FEX file for each machine. If there is a fex.bin file
available in the deploy directory and machine depends on it (see SD
image class) it will be added.

Only OLinuXino A10S uses it for now.

Signed-off-by: Tomas Novotny <novotny@rehivetech.com>
Merge pull request #4 from RehiveTech/fex-support

Add compiled fex file into the image (just for OLinuXino A10S now)