() Moves config options for each controllers into their own
Kconfig files. This keeps upper level Kconfig from getting
too big.
() Options for each controller are moved under their own
submenus.
() Adds the missing copyright to Kconfig.atmel_sam3.
Origin: refactored from existing file
Change-Id: I2dacd3d9b2bfa052c9e0c078ddffed40dbc2ddbf
Signed-off-by: Daniel Leung <daniel.leung@intel.com>