Add basic EDM framework
Add support for Prism I2C touchscreen
Wandboard : Add support for edm framwork
Add support for Future Electronics FWBADAPT-7WVGA expansion board

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

Conflicts:
	arch/arm/mach-mx6/Makefile
Wandboard : Add comments reflecting EDM pin numbers of GPIOs

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

Conflicts:
	arch/arm/mach-mx6/board-wand.c
prism.c: add BTN_TOUCH events to prism singletouch device
defconfig: Small updates to easy demos

 * use LZO compression to improve boot speed
 * enable Future Eletronics 7" LCD expansion board support
 * remove boot logo as we usually use Yocto splash and it avoids two
   changes in a roll

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>