Add support for Zhaoxin I2C controller

zhaoxin inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8WZ8C


CVE: NA

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Zhaoxin I2C Linux driver support all bidirectional bus protocols speed
specified in the I2C Specification 7.0. The speed mode listed in the
followed table.

Signed-off-by: leoliu-oc <leoliu-oc@zhaoxin.com>