arm64: add PSCI support for qemu platform

Summary
   Add ARM PCSI (Power State Coordination Interface) Support
for qemu. With the interface, Poweroff/PowerReset can be support

Signed-off-by: qinwei1 <qinwei1@xiaomi.com>

arch/arm64/Kconfig

@@ -49,6 +49,7 @@ config ARCH_CHIP_RK3399
 config ARCH_CHIP_QEMU
 	bool "QEMU virt platform (ARMv8a)"
 	select ARCH_HAVE_ADDRENV
+	select ARCH_HAVE_PSCI
 	select ARCH_NEED_ADDRENV_MAPPING
 	---help---
 		QEMU virt platform (ARMv8a)
@@ -56,6 +57,7 @@ config ARCH_CHIP_QEMU
 config ARCH_CHIP_GOLDFISH
 	bool "goldfish platform (ARMv8a)"
 	select ARCH_CORTEX_A53
+	select ARCH_HAVE_PSCI
 	select ARCH_HAVE_MULTICPU
 	select ARMV8A_HAVE_GICv2
 	select ARCH_HAVE_ADDRENV

arch/arm64/src/goldfish/goldfish_boot.c

@@ -174,6 +174,10 @@ void arm64_chip_boot(void)
 
   arm64_mmu_init(true);
 
+#ifdef CONFIG_ARCH_HAVE_PSCI
+  arm64_psci_init("smc");
+#endif
+
   /* Perform board-specific device initialization. This would include
    * configuration of board specific resources such as GPIOs, LEDs, etc.
    */

arch/arm64/src/qemu/qemu_boot.c

@@ -177,7 +177,7 @@ void arm64_chip_boot(void)
 
 #if defined(CONFIG_ARCH_CHIP_QEMU_WITH_HV)
   arm64_psci_init("hvc");
-#elif defined(CONFIG_SMP) || defined(CONFIG_ARCH_HAVE_PSCI)
+#elif defined(CONFIG_ARCH_HAVE_PSCI)
   arm64_psci_init("smc");
 #endif