From: Weishi Li
When VIRGL_VERSION_MAJOR<1, virtio_gpu_context_init_enabled
will always return false, causing virgl_cmd_context_create
to always return error. Therefore, it is necessary to also
include the virtio_gpu_context_init_enabled segment in the
VIRGL_VERSION_MAJOR judgment to ensure that
From: Weishi Li
Due to the fact that g->parent_obj.conf only adds
VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED setting when
VIRGL_VERSION_MAJOR >= 1, virgl_cmd_comtext_create()
will always return by error=VIRTIO_GPU_RESP_ERR_UNSPEC
when VIRGL_VERSION_MAJOR < 1, resulting in gl context
initialization fail