[ARM] 4734/1: at91sam9263ek: include IRQ for Ethernet PHY

On the at92sam9263ek board, tell the MACB driver the IRQ used
by its PHY.  This patch is taken from Andrew Victor's 2.6.23-at91
patchset; it matches board schematics.  (But it's currently a NOP
since the MACB driver doesn't yet use PHY irqs.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-at91/board-sam9263ek.c

@@ -163,6 +163,7 @@ static struct at91_mmc_data __initdata ek_mmc_data = {
  * MACB Ethernet device
  */
 static struct at91_eth_data __initdata ek_macb_data = {
+	.phy_irq_pin	= AT91_PIN_PE31,
 	.is_rmii	= 1,
 };