Fix FlacStreamInfo to not call readBits with a >32 value

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=161677399

library/core/src/main/java/com/google/android/exoplayer2/util/FlacStreamInfo.java

@@ -47,7 +47,8 @@ public final class FlacStreamInfo {
     this.sampleRate = scratch.readBits(20);
     this.channels = scratch.readBits(3) + 1;
     this.bitsPerSample = scratch.readBits(5) + 1;
-    this.totalSamples = scratch.readBits(36);
+    this.totalSamples = ((scratch.readBits(4) & 0xFL) << 32)
+        | (scratch.readBits(32) & 0xFFFFFFFFL);
     // Remaining 16 bytes is md5 value
   }