Banshee: sync low battery percent with OS
Banshee: sync low battery percent with OS

This patch is modified low battery percent sync with OS

BUG=b:208182468,b:220954645
BRANCH=none
TEST=build make -j BOARD=Banshee pass,
verified the low battery and battery error can blink red color

Signed-off-by: Leo-Tsai <ff70a007ff259bd0ca9cb341dfae8470b9aa2007@compal.corp-partner.google.com>
Change-Id: Id4f2d691061431af1f30428abd0254dbd9cacc88
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3547318
Reviewed-by: Elthan Huang <a5682efe0e7006173fa6b468bbf36cc9c182d5a5@compal.corp-partner.google.com>
Reviewed-by: Boris Mittelberg <46897f4fb5cad4b1d5146ad1fd460d7f4825bbf7@google.com>

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