Add TPSChrome comments on charging code
Add TPSChrome comments on charging code

This change adds more comments on charging states and fixes battery
temperature out of range log messages.

Signed-off-by: Rong Chang <3a05493f7adfb36d203f663b3bc2ba30e9d6284f@chromium.org>
BUG=chrome-os-partner:10900,12222
TEST=none

Change-Id: Ie3240dc246ad7590078929e41575c67798373aca
Reviewed-on: https://gerrit.chromium.org/gerrit/29253
Reviewed-by: Vic Yang <5fd92abeee651458f98e2856f4f200ee971cee4d@chromium.org>
Commit-Ready: Rong Chang <3a05493f7adfb36d203f663b3bc2ba30e9d6284f@chromium.org>
Tested-by: Rong Chang <3a05493f7adfb36d203f663b3bc2ba30e9d6284f@chromium.org>

longsleep/ec,longsleep/ec,akappy7/ChromeOS_EC_LED_Diagnostics,alterapraxisptyltd/chromium-ec,gelraen/cros-ec,gelraen/cros-ec,coreboot/chrome-ec,fourier49/BZ_DEV_EC,akappy7/ChromeOS_EC_LED_Diagnostics,md5555/ec,alterapraxisptyltd/chromium-ec,coreboot/chrome-ec,md5555/ec,eatbyte/chromium-ec,fourier49/BIZ_EC,thehobn/ec,fourier49/BZ_DEV_EC,coreboot/chrome-ec,fourier49/BZ_DEV_EC,eatbyte/chromium-ec,mtk09422/chromiumos-platform-ec,eatbyte/chromium-ec,mtk09422/chromiumos-platform-ec,fourier49/BIZ_EC,md5555/ec,mtk09422/chromiumos-platform-ec,fourier49/BIZ_EC,eatbyte/chromium-ec,coreboot/chrome-ec,akappy7/ChromeOS_EC_LED_Diagnostics,akappy7/ChromeOS_EC_LED_Diagnostics,coreboot/chrome-ec,thehobn/ec,thehobn/ec,gelraen/cros-ec,alterapraxisptyltd/chromium-ec,longsleep/ec,longsleep/ec,akappy7/ChromeOS_EC_LED_Diagnostics,fourier49/BZ_DEV_EC,gelraen/cros-ec,fourier49/BIZ_EC,thehobn/ec,mtk09422/chromiumos-platform-ec,alterapraxisptyltd/chromium-ec,coreboot/chrome-ec,md5555/ec