Starting snapshot 1.12.0-SNAPSHOT

Change-Id: I92269af3b1103fc6622614a77681bd841438d050
diff --git a/tools/build/onos-prepare-sonar b/tools/build/onos-prepare-sonar
index ddd4fc6..b95d229 100755
--- a/tools/build/onos-prepare-sonar
+++ b/tools/build/onos-prepare-sonar
@@ -12,7 +12,7 @@
 from subprocess import call, check_call, check_output
 
 # FIXME pull the version from the Buck version file
-ONOS_VERSION='1.11.0-SNAPSHOT'
+ONOS_VERSION='1.12.0-SNAPSHOT'
 
 # SonarQube property file name and template
 FILE_NAME = 'sonar-project.properties'