crecord: Add option to specify codec ID

crecord: Add option to specify codec ID

This patch adds a -I command line option to set the codec ID,
either from a defined set of string values or as a number.

After discussion with Vinod it was agreed that we should only
allow writing to a file if we support creating the correct container
file format for that data. As we currently only have support for
creating WAV files only PCM data can be written to a file. Other
formats can be sent raw to stdout.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>