usbmuxd: fix unpackaged files

* WARNING: QA Issue: usbmuxd: Files/directories were installed but not shipped
  /usr/lib64
  /usr/lib64/libusbmuxd.so.1.0.8
  /usr/lib64/libusbmuxd.so.2
  /usr/lib64/libusbmuxd.so
  /usr/lib64/.debug
  /usr/lib64/pkgconfig
  /usr/lib64/.debug/libusbmuxd.so.1.0.8
  /usr/lib64/pkgconfig/libusbmuxd.pc

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>