!2068 i2c: hisi: Only handle the interrupt of the driver's transfer

Merge Pull Request from: @lujunhuaHW 
 
The controller may be shared with other port, for example the firmware.
Handle the interrupt from other sources will cause crash since some
data are not initialized. So only handle the interrupt of the driver's
transfer and discard others.
 
 
Link:https://gitee.com/openeuler/kernel/pulls/2068

 

Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>