convert the board to the new soc architecture
update default config
i2c upgrade taken from eb_cpux9k2.h & board/BuS/eb_cpux9k2/cpux9k2.c
Signed-off-by: NEric Bénard <eric@eukrea.com>
Signed-off-by: NReinhard Meyer <u-boot@emk-elektronik.de>