power: smb5: handle role-switch failure

When a role switch fails notify the current charger state
to the USB driver, this makes sure that the USB phy is
configured to a proper state.

Change-Id: I395255858eceafcb6ff6c34545a74d0f5e0026fc
Signed-off-by: Kavya Nunna <knunna@codeaurora.org>