qemu: enable for aarch64

Enable the target qemu for aarch64 since it works just fine.
Only tested using userland CPU emulation (no HYP) with a
qemu_aarch64_virt_defconfig image inside a qemu_aarch64_virt_defconfig
instance.

Signed-off-by: Gustavo Zacarias <gustavo.zacarias@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/qemu/Config.in

@@ -1,7 +1,8 @@
 config BR2_PACKAGE_QEMU_ARCH_SUPPORTS_TARGET
 	bool
 	# Only tested on these architectures
-	default y if BR2_i386 || BR2_mips || BR2_mipsel || BR2_x86_64
+	default y if BR2_aarch64 || BR2_i386 || BR2_mips || BR2_mipsel \
+		|| BR2_x86_64
 
 comment "QEMU requires a toolchain with wchar, threads"
 	depends on BR2_PACKAGE_QEMU_ARCH_SUPPORTS_TARGET