Enable trains

src/audio/AudioSamples.h

@@ -814,4 +814,8 @@ enum eSfxSample
 	SAMPLEBANK_PED_START = SFX_FOOTSTEP_SAND_4 + 1,
 	SAMPLEBANK_PED_END = 9940,
 	SAMPLEBANK_PED_MAX = SAMPLEBANK_PED_END + 1,
+
+	// LCS: TODO
+	SFX_TRAIN_FAR = NO_SAMPLE,
+	SFX_TRAIN_NEAR = NO_SAMPLE,
 };