lm4: decrease time to wake up from deep sleep to save power
lm4: decrease time to wake up from deep sleep to save power

Decrease the time to wake up from deep sleep when not using
LFIOSC (when using PIOSC in deep sleep). This helps keep us
in deep sleep longer and therefore save power.

BUG=none
BRANCH=samus
TEST=Load onto samus and run for a couple of hours, varying from
S0 to S5, with and without EC. Use idlestats to check that closest
we get to missing deadline is 86us away.

Change-Id: I3eee908e9f42a1c5b549e93d63588a3cb6e29a5d
Signed-off-by: Alec Berg <1a4429eeda29095a12e19a73405f80f5b7f37a63@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/238412
Reviewed-by: Vincent Palatin <70a9964ec8fd10b0b08fcc8623c2add25ddf99ac@chromium.org>
Reviewed-by: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>
(cherry picked from commit 23fa3236aef2f4fe32d3368d439ee93a5b2a4577)
Signed-off-by: Alec Berg <1a4429eeda29095a12e19a73405f80f5b7f37a63@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/238616

thehobn/ec,thehobn/ec,thehobn/ec,thehobn/ec