ASoC: Fix 7/8 spaces indentation in Kconfig

Some entries used 7 or 8 spaces instead if a single TAB.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20201110174904.3413846-1-geert@linux-m68k.org


Signed-off-by: Mark Brown <broonie@kernel.org>