!2056 i2c: hisi: Add gpio bus recovery support

Merge Pull Request from: @cloudyyy1234 
 
Add the I2C suspension recovery function.
The pin multiplexing function of the GPIO is used. When the bus is suspended, the pin is switched to the GPIO to recover the bus.


https://gitee.com/openeuler/kernel/issues/I610G3 
 
Link:https://gitee.com/openeuler/kernel/pulls/2056

 

Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>