CHROMIUM: regulator: s5m8767: add support for 32Khz clocks

CHROMIUM: regulator: s5m8767: add support for 32Khz clocks

Present the 32Khz clocks as fixed regulators.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BUG=chrome-os-partner:17512
TEST=on Spring with S5M8767 PMIC, boot and see Wifi coming up properly

Change-Id: I51ff3adcacc2ea442c7a73aac0ab914767b2f8ce
Reviewed-on: https://gerrit.chromium.org/gerrit/42976
Reviewed-by: Todd Broch <tbroch@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>