ASoC: msm: Fix error recovery in register & deregister vol table

Modify the register & deregister volume table functions
in the voice driver so that no error is returned when
successful. Add error returns for cal reg & dereg
functions and improve error recovery.

Change-Id: I05d14c815cadebc064bee60aada0bf07588e4b6e
Signed-off-by: Ben Romberger <bromberg@codeaurora.org>