netbase: add /etc/network/interfaces file for qemumips & qemuppc

This fixes the network configuration for qemumips & qemuppc to match the
other qemu* machines.

(From OE-Core rev: cb181eb4dc2c20a70153f9d69d732978566ba4f7)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/netbase/netbase-4.45/qemumips/interfaces

@@ -0,0 +1,8 @@
+# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
+ 
+# The loopback interface
+auto lo
+iface lo inet loopback
+
+
+

meta/recipes-core/netbase/netbase-4.45/qemuppc/interfaces

@@ -0,0 +1,8 @@
+# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
+ 
+# The loopback interface
+auto lo
+iface lo inet loopback
+
+
+