usb: kconfig: fix warning of select USB_OTG
When choose randconfig for kernel build, it reports below warning: "warning: (USB_OTG_FSM && FSL_USB2_OTG && USB_MV_OTG) selects USB_OTG which has unmet direct dependencies (USB_SUPPORT && USB && PM)" In fact, USB_OTG is visible symbol and depends on PM, so the driver needs to depend on it to reduce dependency problem. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Reported-by: NArnd Bergmann <arnd@arndb.de> Cc: Felipe Balbi <balbi@ti.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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