ASoC clock gate settings are continuous/gated only.
This patch decides it as bool, then, gated clock will be default.
Special thanks to Stephen
Cc: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>