Merge "mp3dec: Disable integer overflow errors in dct_6 and mdct_6" am: 75c2179c96 am: 029d0c39ed am: a9770c42f4 am: ad5abbc235

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1425609

Change-Id: I05a98b15a23263501488296289b13e112419a305