mb/siemens/mc_ehl2: Enable Marvell PHY interrupt

On this mainboard Marvell PHY INTn is routed to LED[2] pin.

Change-Id: I28a78afdcf0599bb998f906ce8056a0586e24f33
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69434
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb b/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
index b8ea1b6..8090927 100644
--- a/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
+++ b/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
@@ -189,6 +189,8 @@
 				register "led_0_ctrl" = "7"
 				# LED[1]: On - Link, Blink - Activity, Off - No Link
 				register "led_1_ctrl" = "1"
+				# INTn is routed to LED[2] pin
+				register "enable_int" = "true"
 				device mdio 0 on    # PHY address
 					ops m88e1512_ops
 				end
@@ -202,6 +204,8 @@
 				register "led_0_ctrl" = "7"
 				# LED[1]: On - Link, Blink - Activity, Off - No Link
 				register "led_1_ctrl" = "1"
+				# INTn is routed to LED[2] pin
+				register "enable_int" = "true"
 				device mdio 1 on    # PHY address
 					ops m88e1512_ops
 				end
@@ -218,6 +222,8 @@
 				register "led_0_ctrl" = "7"
 				# LED[1]: On - Link, Blink - Activity, Off - No Link
 				register "led_1_ctrl" = "1"
+				# INTn is routed to LED[2] pin
+				register "enable_int" = "true"
 				device mdio 1 on    # PHY address
 					ops m88e1512_ops
 				end