drivers: soc: qcom: notify drivers registering first time

Send usbc mode at register function so that all drivers
registering first time will get the notification of
current usb connection type, if any.

Change-Id: Ifac7af1ff546a17bc6f382246ae0aeec5194ca9f
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>