virgl: add polygon offset clamp

Reviewed-by: Jakob Bornecrantz <jakob@collabora.com>
Signed-off-by: Jakob Bornecrantz <jakob@collabora.com>

src/gallium/drivers/virgl/virgl_screen.c

@@ -206,6 +206,8 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param)
       return vscreen->caps.caps.v1.bset.conditional_render_inverted;
    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
       return vscreen->caps.caps.v1.bset.derivative_control;
+   case PIPE_CAP_POLYGON_OFFSET_CLAMP:
+      return vscreen->caps.caps.v1.bset.polygon_offset_clamp;
    case PIPE_CAP_TEXTURE_GATHER_SM5:
    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
    case PIPE_CAP_FAKE_SW_MSAA:
@@ -217,7 +219,6 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_SAMPLER_VIEW_TARGET:
    case PIPE_CAP_CLIP_HALFZ:
    case PIPE_CAP_VERTEXID_NOBASE:
-   case PIPE_CAP_POLYGON_OFFSET_CLAMP:
    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY: