fdctdsp: cosmetics: Drop one unnecessary if-block level
build: cosmetics: Group hwaccel OBJS declarations together
build: Split WMA frequencies into a separate object file

These are the only WMA bits shared with binkaudio. Splitting them off
reduces the binnkaudio dependency on general WMA code.
vc1: Split bits used in libavformat into a separate header

This reduces inter-library dependencies.
Add release notes for 11.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
Mark 11 release in the changelog

Also fix some typos in the entries for the 11 release.
changelog: Move Ogg subtypes aliases entry to the correct release