Add CONFIG_SYS_GENERIC_BOARD to amcc-common.h and CONFIG_DISPLAY_BOARDINFO
to Kconfig files. canyonlands.h includes amcc-common.h, so remove
CONFIG_SYS_GENERIC_BOARD definition there.
Signed-off-by: Anatolij Gustschin
Cc: Stefan Roese
Cc: Feng Kan
Cc: Masahiro Yamada
Cc: Tom Rini