Fix ALOG_ASSERT in AudioFlinger

Fix broken ALOG_ASSERT in updateFramesPendingAfterTrim_l() introduced by
commit 1c345196.

Change-Id: Ie1b2653069283f23ff0367f2628828e37fb0749c
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 9b4fb7a..d0611b0 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -4045,11 +4045,11 @@
     uint32_t bufBytes        = buf.buffer()->size();
     uint32_t consumedAlready = buf.position();
 
-    ALOG_ASSERT(consumedAlready <= bufFrames,
+    ALOG_ASSERT(consumedAlready <= bufBytes,
                 "Bad bookkeeping while updating frames pending.  Timed buffer is"
                 " only %u bytes long, but claims to have consumed %u"
                 " bytes.  (update reason: \"%s\")",
-                bufFrames, consumedAlready, logTag);
+                bufBytes, consumedAlready, logTag);
 
     uint32_t bufFrames = (bufBytes - consumedAlready) / mCblk->frameSize;
     ALOG_ASSERT(mFramesPendingInQueue >= bufFrames,