usb: pd: Register Type-C class based on connector type

Since PD is not supported with microUSB connector,
do not register Type-C class if connector type is
microUSB as charger driver will take care of it.

Change-Id: I4b8f124cd90bea14bc101aab87bdf65472b0c88f
Signed-off-by: Pratham Pratap <prathampratap@codeaurora.org>