msm: vidc: Register device with clock driver and rename clocks

Rename the clocks per the new naming convention under which
similarly named clocks are distinguish between using their
associated device's name and ID.

Change-Id: I807b6c46ec78bd4eb54d36e0f8a57a5c314ad46c
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>