ShaderGenCommon: Add bit for LOD bias

Source/Core/VideoCommon/ShaderGenCommon.cpp

@@ -42,6 +42,7 @@ ShaderHostConfig ShaderHostConfig::GetCurrent()
   bits.manual_texture_sampling = !g_ActiveConfig.bFastTextureSampling;
   bits.manual_texture_sampling_custom_texture_sizes =
       g_ActiveConfig.ManualTextureSamplingWithHiResTextures();
+  bits.backend_sampler_lod_bias = g_ActiveConfig.backend_info.bSupportsLodBiasInSampler;
   return bits;
 }