Created --runtime-arg switch for dex2oat to pass arguments to runtime.

This replaces the -Xms, -Xmx, and -verbose options.

Change-Id: Idc023b6d369bd8b5df932b9f2eb6dbc79d591ab1
diff --git a/src/oatopt.cc b/src/oatopt.cc
index 133af59..c792b4d 100644
--- a/src/oatopt.cc
+++ b/src/oatopt.cc
@@ -51,8 +51,8 @@
 
   execl("/system/bin/dex2oatd",
         "/system/bin/dex2oatd",
-        "-Xms64m",
-        "-Xmx64m",
+        "--runtime-arg", "-Xms64m",
+        "--runtime-arg", "-Xmx64m",
         "--boot-image=/data/art-cache/boot.art",
         dex_file_option.c_str(),
         oat_file_option.c_str(),