power: smb349-charger: Report supply type as SDP when APSD is disabled

The USB driver expects the supply type as SDP if the charger is unable
to detect a valid type. Report the same when apsd is disabled.

Change-Id: If64e21d18b6fb77e34b868dda01184dd8742fa3e
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>