usb: musb: jz4740: Don't disable external hubs

The jz4740-musb driver does not really support OTG, so it has no reason
to disable external hubs, especially since it's a system-wide setting
and we don't want external hubs to be disabled for other USB host
controllers.

Signed-off-by: Paul Cercueil <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/musb/Kconfig

···
 	depends on OF
 	depends on MIPS || COMPILE_TEST
 	depends on USB_MUSB_GADGET
-	depends on USB=n || USB_OTG_DISABLE_EXTERNAL_HUB
 	select USB_ROLE_SWITCH
 
 config USB_MUSB_MEDIATEK