Nami: Fix battery_is_present detection
Nami: Fix battery_is_present detection

This patch applies CL:776024 to Nami.

Signed-off-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>

BUG=b:69329874,b:70157960
BRANCH=none
TEST=Verify the followings on Nami:
1. Charging and discharging
2. Boot with battery disconnected
3. Software cutoff

Change-Id: I74ae31e349c12b25fdaf1e3958e62ca43b79c567
Reviewed-on: https://chromium-review.googlesource.com/844875
Commit-Ready: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>
Tested-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>
Reviewed-by: Furquan Shaikh <6be5c96c464778f89679b1062a2e0a6af93d2aa5@chromium.org>

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