- Sync shared code with Intel internal
	- New client chipset support added
	- em driver - fixes to 82574, limit queues to 1 but use MSIX
	- em driver - large changes in TX checksum offload and tso
	  code, thanks to yongari.
	- some small changes for watchdog issues.
	- igb driver - local timer watchdog code was missing locking
	  this and a couple other watchdog related fixes.
	- bug in rx discard found by Andrew Boyer, check for null pointer

MFC: a week