package/qemu: add riscv emulation on host variant

RISC-V support was added in qemu 2.12. This target emulation
in host qemu can now be enabled.

Signed-off-by: Julien Olivain <juju@cotds.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/qemu/Config.in.host

@@ -12,6 +12,7 @@ config BR2_PACKAGE_HOST_QEMU_ARCH_SUPPORTS
 	default y if BR2_powerpc
 	default y if BR2_powerpc64
 	default y if BR2_powerpc64le
+	default y if BR2_riscv
 	default y if BR2_sh
 	default y if BR2_sparc
 	default y if BR2_x86_64