Revert "differentiate between charger and car dock, oops."

This reverts commit 10aa154ea0996178c4d8a7b905dd4d0559aad76f.
not sure if this does anything, but it was part of a zero-modem-drop setup.
Revert "Revert "differentiate between charger and car dock, oops.""

This reverts commit 5efd0faa456826a6cb2f5fbbef63151b0aa0291e, reapplying the original patch.
bcmdhd fixes/updates (in progress)
bcmdhd fixes/updates (in progress)
Revert "not sure if this does anything, but it was part of a zero-modem-drop setup."

This reverts commit b6242989ffc3c37aafc2d9b2ab415ffb3d80b559.