ARM: dts: msm: Remove phy_irq for APQ8009 dragon board

The phy_irq is preventing the APQ8009 dragon board
to go into system suspend by triggering spurious
interrupts. Fix this by removing the unwanted phy_irq.

Change-Id: I792ac6d2d108082eb67f2ddc1d6cbec44c16bcba
Signed-off-by: Sriharsha Allenki <sallenki@codeaurora.org>