Fix cert-dcl16-c clang-tidy warnings in media/extractors.

Bug: 120614316
Test: make with WITH_TIDY=1 DEFAULT_GLOBAL_TIDY_CHECKS=-*,cert-dcl16-c
Change-Id: I5795de7d2eaea0dee94a5db4d35c8a7d341f4100
diff --git a/media/extractors/mp3/VBRISeeker.cpp b/media/extractors/mp3/VBRISeeker.cpp
index 523f14c..cd17965 100644
--- a/media/extractors/mp3/VBRISeeker.cpp
+++ b/media/extractors/mp3/VBRISeeker.cpp
@@ -69,7 +69,7 @@
     size_t numFrames = U32_AT(&vbriHeader[14]);
 
     int64_t durationUs =
-        numFrames * 1000000ll * (sampleRate >= 32000 ? 1152 : 576) / sampleRate;
+        numFrames * 1000000LL * (sampleRate >= 32000 ? 1152 : 576) / sampleRate;
 
     ALOGV("duration = %.2f secs", durationUs / 1E6);