Fix compiler warnings.

Change-Id: I2a00178abf578abafa1f7fb6ee0d812d87cb70f0
Test: mmm frameworks/av/media/libeffects/visualizer/
diff --git a/media/libeffects/visualizer/EffectVisualizer.cpp b/media/libeffects/visualizer/EffectVisualizer.cpp
index 91f9fc7..6ed9a43 100644
--- a/media/libeffects/visualizer/EffectVisualizer.cpp
+++ b/media/libeffects/visualizer/EffectVisualizer.cpp
@@ -604,7 +604,7 @@
                 *replySize < (sizeof(int32_t) * MEASUREMENT_COUNT)) {
             ALOGV("VISUALIZER_CMD_MEASURE() error *replySize %" PRIu32
                     " < (sizeof(int32_t) * MEASUREMENT_COUNT) %" PRIu32, *replySize,
-                    sizeof(int32_t) * MEASUREMENT_COUNT);
+                    uint32_t(sizeof(int32_t)) * MEASUREMENT_COUNT);
             android_errorWriteLog(0x534e4554, "30229821");
             return -EINVAL;
         }