ltq-deu: Mark lantiq DEU broken

When the ltq_deu_vr9 kernel module is loaded, hostapd does not start any
more. It fails with this error message:
daemon.err hostapd: nl80211: kernel reports: key addition failed
daemon.err hostapd: Interface initialization failed

OpenWrt uses the standard Linux crypto API in the wifi drivers now
and this probably makes the system offload more crypto operations to
special hardware like the Lantiq DEU. There is probably a bug in the DEU
and these operations fail and then hostapd does not start the interface.

Do not include the Lantiq DEU by default any more.

Fixes: FS#3901
Fixes: 53b6783907 ("mac80211: remove patches stripping down crypto support")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Notupus <notpp46@gmail.com>
(cherry-picked from commit 964863bb23)

target/linux/lantiq/image/ar9.mk

@@ -7,7 +7,7 @@ define Device/avm_fritz7312
 	kmod-ltq-adsl-ar9-mei kmod-ltq-adsl-ar9 \
 	kmod-ltq-adsl-ar9-fw-b kmod-ltq-atm-ar9 \
 	ltq-adsl-app ppp-mod-pppoa \
-	kmod-ltq-deu-ar9 -swconfig
+	-swconfig
 endef
 TARGET_DEVICES += avm_fritz7312
 
@@ -22,7 +22,7 @@ define Device/avm_fritz7320
 	kmod-ltq-adsl-ar9-mei kmod-ltq-adsl-ar9 \
 	kmod-ltq-adsl-ar9-fw-b kmod-ltq-atm-ar9 \
 	ltq-adsl-app ppp-mod-pppoa \
-	kmod-ltq-deu-ar9 kmod-usb-dwc2 -swconfig
+	kmod-usb-dwc2 -swconfig
   SUPPORTED_DEVICES += FRITZ7320
 endef
 TARGET_DEVICES += avm_fritz7320
@@ -38,7 +38,6 @@ define Device/bt_homehub-v3a
   DEVICE_PACKAGES := kmod-usb-dwc2 \
 	kmod-ltq-adsl-ar9-mei kmod-ltq-adsl-ar9 \
 	kmod-ltq-adsl-ar9-fw-a kmod-ltq-atm-ar9 \
-	kmod-ltq-deu-ar9 \
 	ltq-adsl-app ppp-mod-pppoa \
 	kmod-ath9k kmod-owl-loader wpad-basic-wolfssl \
 	uboot-envtools
@@ -107,8 +106,7 @@ define Device/netgear_dgn3500
 	kmod-ath9k kmod-owl-loader wpad-basic-wolfssl \
 	kmod-ltq-adsl-ar9-mei kmod-ltq-adsl-ar9 \
 	kmod-ltq-adsl-ar9-fw-a kmod-ltq-atm-ar9 \
-	ltq-adsl-app ppp-mod-pppoa \
-	kmod-ltq-deu-ar9
+	ltq-adsl-app ppp-mod-pppoa
   SUPPORTED_DEVICES += DGN3500
 endef
 TARGET_DEVICES += netgear_dgn3500
@@ -130,8 +128,7 @@ define Device/netgear_dgn3500b
 	kmod-ath9k kmod-owl-loader wpad-basic-wolfssl \
 	kmod-ltq-adsl-ar9-mei kmod-ltq-adsl-ar9 \
 	kmod-ltq-adsl-ar9-fw-b kmod-ltq-atm-ar9 \
-	ltq-adsl-app ppp-mod-pppoa \
-	kmod-ltq-deu-ar9
+	ltq-adsl-app ppp-mod-pppoa
   SUPPORTED_DEVICES += DGN3500B
 endef
 TARGET_DEVICES += netgear_dgn3500b
@@ -145,7 +142,7 @@ define Device/zte_h201l
 	kmod-ltq-adsl-ar9-mei kmod-ltq-adsl-ar9 \
 	kmod-ltq-adsl-ar9-fw-b kmod-ltq-atm-ar9 \
 	ltq-adsl-app ppp-mod-pppoe \
-	kmod-ltq-deu-ar9 kmod-usb-dwc2 kmod-usb-ledtrig-usbport \
+	kmod-usb-dwc2 kmod-usb-ledtrig-usbport \
 	kmod-ltq-tapi kmod-ltq-vmmc
   SUPPORTED_DEVICES += H201L
 endef
@@ -161,7 +158,7 @@ define Device/zyxel_p-2601hn
 	kmod-ltq-adsl-ar9-mei kmod-ltq-adsl-ar9 \
 	kmod-ltq-adsl-ar9-fw-b kmod-ltq-atm-ar9 \
 	ltq-adsl-app ppp-mod-pppoe \
-	kmod-ltq-deu-ar9 kmod-usb-dwc2
+	kmod-usb-dwc2
   SUPPORTED_DEVICES += P2601HNFX
 endef
 TARGET_DEVICES += zyxel_p-2601hn

target/linux/lantiq/image/danube.mk

@@ -192,7 +192,6 @@ define Device/bt_homehub-v2b
   DEVICE_PACKAGES := kmod-usb-dwc2 \
 	kmod-ltq-adsl-danube-mei kmod-ltq-adsl-danube \
 	kmod-ltq-adsl-danube-fw-a kmod-ltq-atm-danube \
-	kmod-ltq-deu-danube \
 	ltq-adsl-app ppp-mod-pppoa \
 	kmod-ath9k kmod-owl-loader wpad-basic-wolfssl
   SUPPORTED_DEVICES += BTHOMEHUBV2B

target/linux/lantiq/xrx200/target.mk

@@ -11,7 +11,6 @@ DEFAULT_PACKAGES+=kmod-leds-gpio \
 	kmod-ltq-vdsl-vr9 \
 	kmod-ltq-atm-vr9 \
 	kmod-ltq-ptm-vr9 \
-	kmod-ltq-deu-vr9 \
 	ltq-vdsl-app \
 	dsl-vrx200-firmware-xdsl-a \
 	dsl-vrx200-firmware-xdsl-b-patch \