Fix Kconfig text for some Wolfson Micro devices.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NAlex Chiang <achiang@hp.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NLiam Girdwood <lrg@slimlogic.co.uk>