First commit for udoo support.

This is a cleaned up version of https://github.com/UDOOboard/Kernel_Unico/commit/5d7c0ac5748e357084b13df7325e2a331c6fdde8
platform files cleaning - custom macro for UDOO
hdmi driver update
Macro custom update
rm old backup file
Driver udoo for hard erase e reset Sam3x update
internal serial management
bug fix
added config file
add UDOO_defconfig
implements halt management
UDOO platform files fixing, system-halt management
fix driver video
imx6 resets sam3x during shutdown
Driver UDOO for hard erase e reset Sam3x update
iMx.6 resets Sam3x during shutdown fix
ethernet driver improvement
Driver UDOO for hard erase e reset Sam3x fixed
cleaned platform files
ethernet bugfix