Fixes Country Siblings' crash on startup.
`d2d_device_context_draw` doesn't accept `D2D_TARGET_UNKNOWN` because `render_target->target.bitmap->rtv` isn't reliably set when calling `ID3D11DeviceContext1_OMSetRenderTargets`. Therefore, we check for that condition and return early.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58185
-- v3: d2d1: Fix a crash in DrawGlyphRun method family if no target is set. d2d1: Fix a crash in FillGeometry method family if no target is set. d2d1: Fix a crash in DrawGeometry method family if no target is set. d2d1: Fix a crash in DrawBitmap method family if no target is set. d2d1: Fix a crash in Clear method if no target is set.