Fix potential overflow in Visualizer effect am: 57ac66340a am: 63a995164c
am: 38dcbab6b3

Change-Id: Ic3eb9a21798bbf80c31aa1c6da534f11978685a5
tree: 10a50969f457f2d5145cd8bc0745f306bc6bf0e1
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk