ARM: dts: dra72-evm-revc: enable irqs for dp83867 eth phys

TI DRA72-EVM Rev C has two DP83867 ethernet phys which support IRQ
generation in case of phy/link status changes. The INT/PWDN lines from both
DP83867 phys are wired to DRA7 gpio6.16, so reflect the same in DT.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dra72-evm-revc.dts

@@ -68,6 +68,8 @@ dp83867_0: ethernet-phy@2 {
 		ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
 		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
 		ti,min-output-impedance;
+		interrupt-parent = <&gpio6>;
+		interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
 	};
 
 	dp83867_1: ethernet-phy@3 {
@@ -75,6 +77,8 @@ dp83867_1: ethernet-phy@3 {
 		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
 		ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
 		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
-		ti,min-output-imepdance;
+		ti,min-output-impedance;
+		interrupt-parent = <&gpio6>;
+		interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
 	};
 };