i.MX fixes for 5.1, round 3:
- A fix on LS1021A-TWR board that SGMII PCS link remains down for
eTSEC0 upon an ifdown/ifup sequence.
* tag 'imx-fixes-5.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect