Add virtio-enabled kvm_guest target

targets/targets.mk

 $(eval $(call GluonTarget,ar71xx,generic))
 $(eval $(call GluonTarget,mpc85xx,generic))
 $(eval $(call GluonTarget,x86,generic))
+$(eval $(call GluonTarget,x86,kvm_guest))
 
 ifneq ($(BROKEN),)
 $(eval $(call GluonTarget,ramips,rt305x))

targets/x86-kvm_guest/config

+CONFIG_TARGET_x86=y
+CONFIG_TARGET_x86_kvm_guest=y
+CONFIG_VDI_IMAGES=y
+CONFIG_VMDK_IMAGES=y

targets/x86-kvm_guest/kernel-vermagic

+5e81ad3c25d4a4f02e749f398f1868c5

targets/x86-kvm_guest/profiles.mk

+$(eval $(call GluonProfile,KVM,kmod-virtio-balloon kmod-virtio-net kmod-virtio-random))
+$(eval $(call GluonProfileFactorySuffix,KVM))
+$(eval $(call GluonProfileSysupgradeSuffix,KVM))
+$(eval $(call GluonProfileExtraSuffix,KVM,.img.gz))
+$(eval $(call GluonModel,KVM,combined-ext4,x86-kvm))