USB: OTG should be linked before Host

For OTG controller, the host driver will call function
otg_get_transceiver to get the otg transceiver, so we need to init the
OTG driver before HOST.

Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>