Change references of Q19.12 to Q4.27 for clarity

Change-Id: I5beb7daf6ff9bc123ff3582f7c294edcaf8652f6
Signed-off-by: Andy Hung <hunga@google.com>
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 65e9eec..feedd89 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -4954,7 +4954,7 @@
                     // ditherAndClamp() works as long as all buffers returned by
                     // activeTrack->getNextBuffer() are 32 bit aligned which should be always true.
                     if (activeTrack->mChannelCount == 1) {
-                        // temporarily type pun mRsmpOutBuffer from Q19.12 to int16_t
+                        // temporarily type pun mRsmpOutBuffer from Q4.27 to int16_t
                         ditherAndClamp(activeTrack->mRsmpOutBuffer, activeTrack->mRsmpOutBuffer,
                                 framesOut);
                         // the resampler always outputs stereo samples: