linux-phytec-ti

ASoC: kirkwood: Free external clock if it is a duplicate of internal

[Remaining patch from "ASoC: kirkwood: use devm_clk_get() for the
external clock" -- broonie]

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@linaro.org>