Log Message:
musicpd: Update to 0.21.22

ver 0.21.22 (2020/04/02)
* database
  - simple: optimize startup
* input
  - curl: fix streaming errors on Android
* playlist
  - rss: support MIME type application/xml
* mixer
  - android: new mixer plugin for "sles" output
* Android
  - TV support
* Windows
  - fix time zone offset check
* fix build failures with uClibc-ng