Adds support for Spreadtrum's SoC Platform in the arm64 Kconfig and
defconfig files.
Signed-off-by: NZhizhou Zhang <zhizhou.zhang@spreadtrum.com>
Signed-off-by: NOrson Zhai <orson.zhai@spreadtrum.com>
Signed-off-by: NChunyan Zhang <chunyan.zhang@spreadtrum.com>