Add WrapI_UUUI

For sceMpegAvcConvertToYuv420 use
public int sceMpegAvcConvertToYuv420(int mpeg, TPointer bufferOutput,
TPointer unknown1, int unknown2) {
return 0;
}
Merge pull request #911 from sum2012/patch-2

Add WrapI_UUUI