We only use clk_get() to get the frequency, the rest is done by
the runtime PM calls. Let's free the clock too.
Cc: Brian Hutchinson <b.hutchman@gmail.com> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David S. Miller <davem@davemloft.net>