isl9241: Get bypass mode status
isl9241: Get bypass mode status

This patch makes isl9241's get_status additionally get the bypass gate
status.

BUG=b:214057333
BRANCH=None
TEST=On Agah.

Signed-off-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>
Change-Id: I704b64a0bc21108906ec4c9a6ba952a77070edb3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3733423
Reviewed-by: Tim Wawrzynczak <86444811eee8c2cb29e29a251d7a069e64ccc665@chromium.org>

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