spi: add phytium spi support

phytium inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8B5RL


CVE: NA

----------------------------------

add support for SPI controller on Phytium SoCs and Phytium PCIe chipsets.

Signed-off-by: Malloy Liu <liuqi1610@phytium.com.cn>