This prevents the options from being delete with make kernel_oldconfig.
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -126,6 +126,8 @@ config SSB_DRIVER_MIPS
 config SSB_EMBEDDED
 	bool
 	depends on SSB_DRIVER_MIPS
+	select USB_EHCI_HCD_SSB
+	select USB_OHCI_HCD_SSB
 	default y
 
 config SSB_DRIVER_EXTIF