manifest: Use linaro-playground branch of device/lge/mako

It adds the kernel config setting etc.

Change-Id: I9402ab149f3ef5f59473a7eab809508e78a6ce1c
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>
diff --git a/default.xml b/default.xml
index 1fc19ba..fb956d4 100644
--- a/default.xml
+++ b/default.xml
@@ -213,7 +213,7 @@
   <project path="device/generic/x86" name="device/generic/x86" groups="common" />
   <project path="device/google/accessory/arduino" name="device/google/accessory/arduino" groups="device,common" />
   <project path="device/google/accessory/demokit" name="device/google/accessory/demokit" groups="device,common" />
-  <project path="device/lge/mako" name="device/lge/mako" groups="device,nexus4" />
+  <project path="device/lge/mako" name="device/lge/mako" revision="linaro-playground" groups="device,nexus4" />
   <project path="device/lge/mako-kernel" name="device/lge/mako-kernel" groups="device,nexus4" />
   <project path="device/sample" name="device/sample" groups="common" />
   <project path="docs/source.android.com" name="platform/docs/source.android.com" groups="common" />