Avoid including vm.h header in tests.

Bug: 115484857
Change-Id: I3145826c057d28ddab2c830361a5881e4455f016
diff --git a/build/toolchain/embedded.gni b/build/toolchain/embedded.gni
index e608c61..d6a6102 100644
--- a/build/toolchain/embedded.gni
+++ b/build/toolchain/embedded.gni
@@ -368,6 +368,6 @@
 
     # Nonsense values because they are required but shouldn't be used.
     heap_pages = 0
-    max_vms = 1
+    max_vms = 0
   }
 }