Rename the DDR controller macro from DDR0 to DMC0 to avoid confustion for
bf60x.
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

Change ADI BSD license to standart 3 clause BSD license for some blackfin arch
code requested by ADI Legal.
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

Add machine files for bf60x including head files, Kconfig/Makefile and board
file.
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>