msm: vidc: Prettify logs

Many of the logs were missing a trailing "\n", which led to mangled logs
when the debug level was increased.  Hence add a new line to logs where
appropriate.

In addition this commit also prunes useless logs and re-formats some
logs to make them look nicer.

Change-Id: I9260ecc47a96ca0894a016caad6fd3811d25b502
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>