ASoC: rt5663: clean up indentation issues

There are two break statements that are indented one level too deeply,
remove the extraneous tabs.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190925100330.20695-1-colin.king@canonical.comSigned-off-by: Mark Brown <broonie@kernel.org>