Support new names for emulators

Change-Id: Ibf81ebe58ed92de98b004d278b5de06bbf3474ec
diff --git a/src/device.rs b/src/device.rs
index 7dd98eb..18f458a 100644
--- a/src/device.rs
+++ b/src/device.rs
@@ -198,9 +198,9 @@
 
     let mut args = vec![];
     if options.aemu {
-        args.push("aemu");
+        args.push("emu");
     } else {
-        args.push("run");
+        args.push("qemu");
     }
 
     if options.with_networking {