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/AudioResampler.h b/services/audioflinger/AudioResampler.h
index 0592855..b84567e 100644
--- a/services/audioflinger/AudioResampler.h
+++ b/services/audioflinger/AudioResampler.h
@@ -63,7 +63,7 @@
     // A mono provider delivers a sequence of samples.
     // A stereo provider delivers a sequence of interleaved pairs of samples.
     // Multi-channel providers are not supported.
-    // In either case, 'out' holds interleaved pairs of fixed-point signed Q19.12.
+    // In either case, 'out' holds interleaved pairs of fixed-point Q4.27.
     // That is, for a mono provider, there is an implicit up-channeling.
     // Since this method accumulates, the caller is responsible for clearing 'out' initially.
     // FIXME assumes provider is always successful; it should return the actual frame count.