linux-xlnx: Backport kernel change for traceevent

* The Makefile in traceevent has posioned the includes for cross builds
  with /usr/local/include. This upstream patch has been back ported
  (from linux-xlnx 3.10) to resolve this issue.

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
boards/zedboard: Fix Ethernet PHY dts node

* The Ethernet PHY on the ZedBoard is not guaranteed to be on address 7,
  instead use the phy broadcast address of 0 which is acceptable as no
  other devices are on the MDIO bus for the ZedBoard.

Reported-by: Philip Balister <philip@balister.org>
Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>