sh: remove unused clock lookup

Now when all clocks are registered using clkdev,
get rid of the special SH-specific clock lookup.

Also ditch the unused module ref counting code.
This patch syncs the SH behaviour with ARM.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2 files changed