Kernel: T4928: disable RNDIS in arm64 builds

It's the second time the maintainers talk about removing RNDIS from the Linux
Kernel. We should not bet on such a feature if not extremely necessary.

https://www.phoronix.com/news/Linux-Disabling-RNDIS-Drivers

packages/linux-kernel/arch/arm64/configs/vyos_defconfig

@@ -2606,7 +2606,7 @@ CONFIG_USB_NET_GL620A=m
 CONFIG_USB_NET_NET1080=m
 CONFIG_USB_NET_PLUSB=m
 CONFIG_USB_NET_MCS7830=m
-CONFIG_USB_NET_RNDIS_HOST=m
+# CONFIG_USB_NET_RNDIS_HOST is not set
 CONFIG_USB_NET_CDC_SUBSET_ENABLE=m
 CONFIG_USB_NET_CDC_SUBSET=m
 CONFIG_USB_ALI_M5632=y
@@ -2822,7 +2822,7 @@ CONFIG_ZD1211RW=m
 CONFIG_WLAN_VENDOR_QUANTENNA=y
 # CONFIG_QTNFMAC_PCIE is not set
 CONFIG_MAC80211_HWSIM=m
-CONFIG_USB_NET_RNDIS_WLAN=m
+# CONFIG_USB_NET_RNDIS_WLAN is not set
 # CONFIG_VIRT_WIFI is not set
 
 #
@@ -5709,7 +5709,6 @@ CONFIG_USB_F_NCM=m
 CONFIG_USB_F_ECM=m
 CONFIG_USB_F_EEM=m
 CONFIG_USB_F_SUBSET=m
-CONFIG_USB_F_RNDIS=m
 CONFIG_USB_F_MASS_STORAGE=m
 CONFIG_USB_F_FS=m
 CONFIG_USB_F_UAC1=m
@@ -5725,7 +5724,6 @@ CONFIG_USB_CONFIGFS_OBEX=y
 CONFIG_USB_CONFIGFS_NCM=y
 CONFIG_USB_CONFIGFS_ECM=y
 CONFIG_USB_CONFIGFS_ECM_SUBSET=y
-CONFIG_USB_CONFIGFS_RNDIS=y
 CONFIG_USB_CONFIGFS_EEM=y
 CONFIG_USB_CONFIGFS_MASS_STORAGE=y
 CONFIG_USB_CONFIGFS_F_LB_SS=y
@@ -5745,7 +5743,6 @@ CONFIG_USB_ZERO=m
 CONFIG_USB_AUDIO=m
 # CONFIG_GADGET_UAC1 is not set
 CONFIG_USB_ETH=m
-CONFIG_USB_ETH_RNDIS=y
 # CONFIG_USB_ETH_EEM is not set
 # CONFIG_USB_G_NCM is not set
 CONFIG_USB_GADGETFS=m
@@ -5757,7 +5754,6 @@ CONFIG_USB_G_PRINTER=m
 CONFIG_USB_CDC_COMPOSITE=m
 CONFIG_USB_G_ACM_MS=m
 CONFIG_USB_G_MULTI=m
-CONFIG_USB_G_MULTI_RNDIS=y
 # CONFIG_USB_G_MULTI_CDC is not set
 CONFIG_USB_G_HID=m
 # CONFIG_USB_G_DBGP is not set