Changelog for iavf-4.3.19

Add RDMA support for 100G cards
Add support for the requesting iAVF to query the QoS settings for 100G cards
Add IEPS_SUPPORT compile flag to Makefile for IDC files
Add waiting for response from PF in set mac
Fix race condition between iavf_remove() and VFR
Fix kernel BUG in free_msi_irqs
Fix failure during IDC/auxiliary init/deinit
Fix unregister_netdev() failure
Fix error when changing ring parameters on ice PF
Fix faster VFR recovery during init state machine
Fix ethtool coalesce handlers
Fix rx_*_cso counters
Fix compilation issues for latest OS-es