fix-for-2020.01

Heiko Schocher

@hs

3104162a · i2c: i2c_cdns: fix write timeout on fifo boundary · Dec 11, 2019

i2c bugfixes for 2020.01
- i2c: i2c_cdns: fix write timeout on fifo boundary
  fixes timout issue when writting number of bytes is multiple
  of the FIFO depth.