configs: add davinci_defconfig and min_defconfig

ascend inclusion
category: feature
bugzilla: NA
CVE: NA

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add davinci_defconfig and min_defconfig for ascend inclusion
Signed-off-by: NZhou Guanghui <zhouguanghui1@huawei.com>
Signed-off-by: NLi Heng <liheng40@huawei.com>
Signed-off-by: NLijun Fang <fanglijun3@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>