arm: psci: Fix RESET2 hook

The RESET2 hook is a PSCI v1.1 functionality, rename the macro accordinly.
Add missing handler for the RESET2 hook, so it can be implemented by U-Boot.

Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/arch/arm/cpu/armv8/psci.S b/arch/arm/cpu/armv8/psci.S
index 6aece11..ab8b3df 100644
--- a/arch/arm/cpu/armv8/psci.S
+++ b/arch/arm/cpu/armv8/psci.S
@@ -81,6 +81,7 @@
 PSCI_DEFAULT(psci_system_suspend_64)
 PSCI_DEFAULT(psci_stat_residency_64)
 PSCI_DEFAULT(psci_stat_count_64)
+PSCI_DEFAULT(psci_system_reset2_64)
 
 .align 3
 _psci_64_table:
@@ -94,6 +95,7 @@
 PSCI_TABLE(ARM_PSCI_1_0_FN64_SYSTEM_SUSPEND, psci_system_suspend_64)
 PSCI_TABLE(ARM_PSCI_1_0_FN64_STAT_RESIDENCY, psci_stat_residency_64)
 PSCI_TABLE(ARM_PSCI_1_0_FN64_STAT_COUNT, psci_stat_count_64)
+PSCI_TABLE(ARM_PSCI_1_1_FN64_SYSTEM_RESET2, psci_system_reset2_64)
 PSCI_TABLE(0, 0)
 
 .macro	psci_enter