sunxi: Add BananaPi support

Signed-off-by: bananapi <hucheng.lew@qq.com>
Signed-off-by: Bo Shen <voice.shen@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
modified banana Pi fex configuration

Signed-off-by: Hans de Goede <hdegoede@redhat.com>