Tell media engine to change channel when psmf specifies stream.

Idolmaster use scePsmfSpecifyStreamWithStreamTypeNumber to specify streams and change streams,now Idolmaster Shiny Festa Honey works fine to me.Maybe help other games using scePsmfSpecifyStreamWithStreamTypeNumber/scePsmfSpecifyStreamWithStreamType.

 I found #4993 produced the same issue like #5075 in other games like Naruto Shippuden UN Heroes 3(US).
Since #5073,I tested Naruto Shippuden UN Heroes 3(US) and can go in-game even if not Set the audio/video streams per sceMpegGet*Au(),I think the problem of #2226 might be buffer queue issue,so I  remove that to fix #5075 and other same issue.Not pretty sure though.