qcom-common: Do not build charger

This package doesn't exist anymore. Charger is now symlinked to /sbin/healthd
Remove charger images too because they aren't compiling anymore

Change-Id: Ib04b8a22536633aa926144fe40e4c25f29e14835
qcom-common: Include healthd charging images

Looks like the images are actually optional, so we need to
explicitly add them to the build so they're included from the
healthd sources.

Change-Id: I49373bcdda2eb849d85ec6bab6f5138f38a7d7b6