power: qpnp-smbcharger: add voting logic for enabling/disabling HVDCP

HVDCP can be enabled from multiple location in the charger driver. Update
HVDCP enable/disable logic to use voting mechanism.

Also optimize shutdown() hook and Fix ICL voting on USB removal,
update usb status after APSD re-reun, release hvdcp wakelock when usb
removed and enable parallel charger only if charger is present.

CRs-Fixed: 1050520
Change-Id: Ifa42d0d13a10ce803d5ce19e59659d56d0c92f43
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Signed-off-by: Vamshi Krishna B V <vbv@codeaurora.org>