Fix cert-dcl16-c clang-tidy warnings in audioflinger.

Bug: 120614316
Test: make with WITH_TIDY=1 DEFAULT_GLOBAL_TIDY_CHECKS=-*,cert-dcl16-c
Change-Id: I39f164a4204043042db383ce10ded542437f8447
diff --git a/services/audioflinger/BufLog.cpp b/services/audioflinger/BufLog.cpp
index ae96036..5f6aca0 100644
--- a/services/audioflinger/BufLog.cpp
+++ b/services/audioflinger/BufLog.cpp
@@ -115,7 +115,7 @@
         unsigned int samplingRate,
         size_t maxBytes = 0) : mId(id), mFormat(format), mChannels(channels),
                 mSamplingRate(samplingRate), mMaxBytes(maxBytes) {
-    mByteCount = 0l;
+    mByteCount = 0;
     mPaused = false;
     if (tag != NULL) {
         (void)audio_utils_strlcpy(mTag, tag);