Bump up patch version after release 1.5.1

Issue-ID: MULTICLOUD-1032
Signed-off-by: Bin Yang <bin.yang@windriver.com>
Change-Id: I0a470b1b8d32aa53f5a5a1e42dd1f576997fbb11
diff --git a/version.properties b/version.properties
index f1ea5f1..0f4fbda 100644
--- a/version.properties
+++ b/version.properties
@@ -19,7 +19,7 @@
 
 major=1
 minor=5
-patch=1
+patch=2
 
 base_version=${major}.${minor}.${patch}