ISL923x: Disable input regulation in driver init
ISL923x: Disable input regulation in driver init

Disable input regulation until other tasks such as USB-C,
charger_manager, etc. have had time to gather information
about the state of the connected charger.

BUG=b:224616537
BRANCH=none
TEST=make -j runtests

Signed-off-by: Sam Hurst <500b4cddcd66abe3fe333e92c4c95d7f41e62e4e@google.com>
Change-Id: Ibc03ddaeb3eb699115b535947c4a917b0255ddb2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3609108
Reviewed-by: Wai-Hong Tam <04b587fdf5845741a0c5a8b9cd59ca72d73ef8fc@google.com>
Reviewed-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec