ASoC: rt5659: Fix irq leak

Use devm_request_threaded_irq to ensure the irq is freed when unload the
module. The rt5659->i2c is no longer used after this conversion, thus
remove it as well.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2 files changed