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usb: pd: Update uevent parameters during hard reset
Ensure that a few of the parameters (SELECTED_PDO, REQUESTED_PDO,
RDO) are properly cleared out during hard reset and a uevent
update is sent to notify userspace clients.
Also, don't reset src_cap_id upon disconnect. This makes it a
a monotonically increasing value upon every connection so that
clients can distinguish when a new PD session is established.
Demote it to a u16 in order to have a smaller wraparound (65535).
Change-Id: I622ad1155b3680d3f616d5e9a835d4c6cbca3636
Signed-off-by: Jack Pham <jackp@codeaurora.org>