usb: dwc3: dwc3-msm: Handle floating charger PMI notification properly

When floating charger is detected, driver first notifies -ETIMEDOUT to
PMI after 10 sec and then stops peripheral by simulating cable disconnect.
As part of disconnect it notifies PMI to draw 0ma which PMI re-interprets
as a SDP in bus suspend state and reconfigures PMI for SDP. Hence send
charger current notification only as part of cable disconnect simulation
by checking charger type.

Change-Id: Ibafe8d52fa14ff32b6cb11e9f6e15a4f3f147d7a
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>