[RELEASE] Released version 2.2-dev0

Released version 2.2-dev0 with the following main changes :
    - exact copy of 2.1.0
diff --git a/include/common/version.h b/include/common/version.h
index 748d2be..2bf1ce0 100644
--- a/include/common/version.h
+++ b/include/common/version.h
@@ -33,7 +33,7 @@
 #ifdef  CONFIG_PRODUCT_BRANCH
 #define PRODUCT_BRANCH    CONFIG_PRODUCT_BRANCH
 #else
-#define PRODUCT_BRANCH   "2.1"
+#define PRODUCT_BRANCH   "2.2"
 #endif
 
 #ifdef  CONFIG_PRODUCT_STATUS