PLATFORM_PREVIEW_SDK_VERSION = 3 for DP3

Bug: 27150977
Change-Id: I8f13cec505a73678fb605ee3bce00519d16c2f7e
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 143f25f..f904335 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -91,7 +91,7 @@
     # assuming the device can only support APIs as of the previous official
     # public release.
     # This value will always be 0 for release builds.
-    PLATFORM_PREVIEW_SDK_VERSION := 2
+    PLATFORM_PREVIEW_SDK_VERSION := 3
   endif
 endif