package/qemu: enable loongarch64 as target package

LoongArch64 emulation system / user emulation is supported
by QEMU.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/qemu/Config.in.host

@@ -4,6 +4,7 @@ config BR2_PACKAGE_HOST_QEMU_ARCH_SUPPORTS
 	default y if BR2_armeb
 	default y if BR2_aarch64
 	default y if BR2_i386
+	default y if BR2_loongarch64
 	default y if BR2_m68k
 	default y if BR2_microblazeel
 	default y if BR2_microblazebe