cm: Bump to 7.2.0-RC0

Change-Id: I19d56107f7684401ea4e91ffda181d762bf8112a
diff --git a/products/common_versions.mk b/products/common_versions.mk
index 247197f..7c19fbf 100644
--- a/products/common_versions.mk
+++ b/products/common_versions.mk
@@ -1,6 +1,6 @@
 PRODUCT_VERSION_MAJOR = 7
-PRODUCT_VERSION_MINOR = 1
-PRODUCT_VERSION_MAINTENANCE = 0
+PRODUCT_VERSION_MINOR = 2
+PRODUCT_VERSION_MAINTENANCE = 0-RC0
 
 PRODUCT_BUILD_PROP_OVERRIDES += BUILD_DISPLAY_ID=GWK74