updated prebuilt toolchains for emulator

added prebuilts/clang/darwin-x86/host/3.5
removed prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6

Change-Id: I37df328ff238b7a3ceeb3a4c49e4257461766fa0
diff --git a/default.xml b/default.xml
index bc5e55c..4a716aa 100644
--- a/default.xml
+++ b/default.xml
@@ -17,10 +17,10 @@
   <project name="platform/external/gtest" path="external/gtest" />
   <project name="platform/external/emma" path="external/emma" />
   <project name="platform/external/qemu" path="external/qemu" />
+  <project name="platform/prebuilts/clang/darwin-x86/host/3.5" path="prebuilts/clang/darwin-x86/host/3.5" />
   <project name="platform/prebuilts/eclipse-build-deps" path="prebuilts/eclipse-build-deps" />
   <project name="platform/prebuilts/eclipse-build-deps-sources" path="prebuilts/eclipse-build-deps-sources" />
   <project name="platform/prebuilts/eclipse" path="prebuilts/eclipse" />
-  <project name="platform/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6" path="prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6" />
   <project name="platform/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.8" path="prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.8" />
   <project name="platform/prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8" path="prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8" />
   <project name="platform/prebuilts/qemu-kernel" path="prebuilts/qemu-kernel" />