Pass "net.ifnames=0" to the kernel command line of the installer images

We want debian-installer to see "ethX" device names and not the
other names that we have disabled via kali-defaults anyway. That
discrepancy even breaks networking for minimal installations
where /etc/network/interfaces gets the wrong name.

simple-cdd/simple-cdd.conf

@@ -60,6 +60,9 @@ mirror_components="main contrib non-free"
 security_mirror=""
 updates_mirror=""
 
+# Add kernel parameter to disable
+export KERNEL_PARAMS="net.ifnames=0 "
+
 # Kernel and architecture related
 if [ "$ARCH" = "i386" ]; then
     kernel_packages="linux-image-686-pae"
@@ -67,7 +70,7 @@ fi
 if [ "$ARCH" = "arm64" ]; then
     kernel_packages="linux-image-arm64"
     # ARM devices don't typically have a default console set, so we export one here
-    export KERNEL_PARAMS="console=tty0 "
+    export KERNEL_PARAMS="${KERNEL_PARAMS} console=tty0 "
     # Some packages are not available on arm64
     require_optional_packages="false"
 fi