stagefright-plugins: Init port with larger audio buffer size
stagefright-plugins: Init port with larger audio buffer size

 * Allocate enough to handle 32 bits of data.

Change-Id: Ieac10aa1c1ac78b679c57a1957c3d6699612a262

AOSP-CAF/platform_external_stagefright-plugins,TeamExodus/external_stagefright-plugins,VRToxin/android_external_stagefright-plugins,DirtyUnicorns/android_external_stagefright-plugins,Evervolv/android_external_stagefright-plugins,AOSPB/external_stagefright-plugins,AOSP-CAF/platform_external_stagefright-plugins,VRToxin/android_external_stagefright-plugins,BrokenROM/external_stagefright-plugins,SlimRoms/android_external_stagefright-plugins,DirtyUnicorns/android_external_stagefright-plugins,PAC-ROM/android_external_stagefright-plugins,PAC-ROM/android_external_stagefright-plugins,TeamExodus/external_stagefright-plugins,SlimRoms/android_external_stagefright-plugins,AOSPB/external_stagefright-plugins,Evervolv/android_external_stagefright-plugins,BrokenROM/external_stagefright-plugins