pcmenc: set correct bitrate value

This fixes a bogus bitrate value in the header of WAV files with
alaw/ulaw audio.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 7d7b40f48a05af4483b31cdb8b4f1808b97b1f2f)

Conflicts:

	libavcodec/pcm.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
5 files changed