Tegra: enable EHF for watchdog timer interrupts

This patch enables the Exception Handling Framework to service the WDT
interrupts on all Tegra platforms.

Verified that the watchdog timer interrupt fires after migrating to
the EHF.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I6b2e33da7841aa064e3a8f825c26fadf168cd0d5
diff --git a/plat/nvidia/tegra/soc/t186/plat_setup.c b/plat/nvidia/tegra/soc/t186/plat_setup.c
index e5d0d01..1c7c25d 100644
--- a/plat/nvidia/tegra/soc/t186/plat_setup.c
+++ b/plat/nvidia/tegra/soc/t186/plat_setup.c
@@ -214,9 +214,9 @@
 
 /* Secure IRQs for Tegra186 */
 static const interrupt_prop_t tegra186_interrupt_props[] = {
-	INTR_PROP_DESC(TEGRA186_TOP_WDT_IRQ, GIC_HIGHEST_SEC_PRIORITY,
+	INTR_PROP_DESC(TEGRA186_TOP_WDT_IRQ, PLAT_TEGRA_WDT_PRIO,
 			GICV2_INTR_GROUP0, GIC_INTR_CFG_EDGE),
-	INTR_PROP_DESC(TEGRA186_AON_WDT_IRQ, GIC_HIGHEST_SEC_PRIORITY,
+	INTR_PROP_DESC(TEGRA186_AON_WDT_IRQ, PLAT_TEGRA_WDT_PRIO,
 			GICV2_INTR_GROUP0, GIC_INTR_CFG_EDGE)
 };