fate: Switch ra4-288 test from framecrc() to pcm()

The decoder is float-based and the test needs to allow for some fuzz.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
concat: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>
lmlm4: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>
m4vdec: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>