mpc85xx: remove USB support from kernel

This removes USB support from the compiled kernel. Because of this, the
kernel is just small enough for the TP-Link WDR4900 to boot the
resulting kernel.

This is necessary to support the WDR4900 in the upcoming 19.xx release.
In the long run, this should be fixed with a second stage bootloader, as
the vendor bootloader only loads the first 2684k bytes.

Signed-off-by: David Bauer <mail@david-bauer.net>

target/linux/mpc85xx/Makefile

@@ -22,6 +22,6 @@ include $(INCLUDE_DIR)/target.mk
 
 DEFAULT_PACKAGES += \
 	kmod-input-core kmod-input-gpio-keys kmod-button-hotplug \
-	kmod-leds-gpio swconfig kmod-ath9k wpad-basic
+	kmod-leds-gpio swconfig kmod-ath9k wpad-basic kmod-usb2-fsl
 
 $(eval $(call BuildTarget))

target/linux/mpc85xx/config-4.14

@@ -354,13 +354,6 @@ CONFIG_UCC=y
 CONFIG_UCC_FAST=y
 CONFIG_UCC_GETH=y
 # CONFIG_UGETH_TX_ON_DEMAND is not set
-CONFIG_USB=y
-CONFIG_USB_COMMON=y
-CONFIG_USB_EHCI_FSL=y
-CONFIG_USB_EHCI_HCD=y
-# CONFIG_USB_EHCI_HCD_PLATFORM is not set
-CONFIG_USB_EHCI_HCD_PPC_OF=y
-CONFIG_USB_FHCI_HCD=y
 CONFIG_USB_SUPPORT=y
 CONFIG_VDSO32=y
 # CONFIG_VIRT_CPU_ACCOUNTING_NATIVE is not set

target/linux/mpc85xx/config-4.19

@@ -315,13 +315,6 @@ CONFIG_UCC=y
 CONFIG_UCC_FAST=y
 CONFIG_UCC_GETH=y
 # CONFIG_UGETH_TX_ON_DEMAND is not set
-CONFIG_USB=y
-CONFIG_USB_COMMON=y
-CONFIG_USB_EHCI_FSL=y
-CONFIG_USB_EHCI_HCD=y
-# CONFIG_USB_EHCI_HCD_PLATFORM is not set
-CONFIG_USB_EHCI_HCD_PPC_OF=y
-CONFIG_USB_FHCI_HCD=y
 CONFIG_USB_SUPPORT=y
 CONFIG_VDSO32=y
 # CONFIG_VIRT_CPU_ACCOUNTING_NATIVE is not set