Move value for the Build.CUR_DEVELOPMENT constant into libcore

This matches a corresponding libcore change. It is to allow
libcore to use this value as a default when no other value is
explicitly set, e.g. in the system server or during testing
with vogar.

Bug: 34072201
Test: Device boots with CLs from this CL's topic.
Change-Id: Id812339a343ecea84a08bfdf4b873f3b156a13d4
diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index f6edee0..0d269af 100644
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -245,7 +245,7 @@
          * Magic version number for a current development build, which has
          * not yet turned into an official release.
          */
-        public static final int CUR_DEVELOPMENT = 10000;
+        public static final int CUR_DEVELOPMENT = VMRuntime.SDK_VERSION_CUR_DEVELOPMENT;
 
         /**
          * October 2008: The original, first, version of Android.  Yay!