Merge branch 'stmmac-EST-interrupts-and-ethtool'

Mohammad Athari Bin Ismail says:

====================
net: stmmac: EST interrupts and ethtool

This patchset adds support for handling EST interrupts and reporting EST
errors. Additionally, the errors are added into ethtool statistic.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>