The java version changed, and we made envsetup automatically find the right JAVA_HOME.

This change forces everyone to re-source envsetup.sh

Change-Id: Ieb9512d5725cca26a83debf9b0480bc20e19d5ee
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 920cc3a..48a8743 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -16,7 +16,7 @@
 # people who haven't re-run those will have to do so before they
 # can build.  Make sure to also update the corresponding value in
 # buildspec.mk.default and envsetup.sh.
-CORRECT_BUILD_ENV_SEQUENCE_NUMBER := 9
+CORRECT_BUILD_ENV_SEQUENCE_NUMBER := 10
 
 # ---------------------------------------------------------------
 # The product defaults to generic on hardware and sim on sim