UPSTREAM: ASoC: da7219: Disallow unsupported 32KHz clock setting in set_dai_sysclk()

UPSTREAM: ASoC: da7219: Disallow unsupported 32KHz clock setting in set_dai_sysclk()

The PLL function was updated to disallow 32KHz in
commit 501f72e9c520 ("ASoC: da7219: Remove support for 32KHz PLL mode"),
but set_dai_sysclk() was missed and still permits it. This patch resolves
that discrepancy.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from git.kernel.org kernel/git/broonie/sound.git
topic/da7219 commit fb137ba64a6415ddf231495f6d1a82de1cd69ed0)

Change-Id: I1cf8242745f39ac5ae3cb1aa30989bf4ab8f7f93
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>