qemuarm64-efi.conf: Introduce qemuarm64 machine equivalent with EFI

This machine is based on Cortex-A57. For the EFI side, it uses
edk2-firmware.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

meta-oniro-core/conf/machine/qemuarm64-efi.conf

+# SPDX-FileCopyrightText: Huawei Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+#@TYPE: Machine
+#@NAME: qemuarm64-efi
+#@DESCRIPTION: Qemu Arm64 machine that boots via EFI.
+
+require conf/machine/include/arm/armv8a/tune-cortexa57.inc
+require conf/machine/include/qemu-efi.inc
+
+KERNEL_IMAGETYPE ?= "Image"
+
+# For runqemu
+QB_SYSTEM_NAME = "qemu-system-aarch64"
+QB_MACHINE_VIRT_HIGHMEM = "on"
+QB_CPU = "-cpu cortex-a57"