liblights: Enable Charging LED

This reverts commit 9126ee1a27b933ad3940c9add7a2a5fb0c06c469.

Conflicts:
	liblights/lights.c
d2-common: liblights

Fix pinkish hue when color is set to white

Change-Id: I95a8bb35fafcbb85b9ab3600516ae756e886f5df