sunxi: Kconfig: move common settings into a shared code block

SYS_CPU, SYS_BOARD and SYS_SOC are identical for all sunxi boards, move
them to a shared code block.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
1 file changed