Build 2.7 as 2.6 was a phone app FC fix for mako

Change-Id: I30c20b647550e4470af4ae458c133da5001ae243
diff --git a/config/common.mk b/config/common.mk
index 77ede70..2b1b709 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -157,7 +157,7 @@
 include vendor/slim/config/themes_common.mk
 PRODUCT_VERSION_MAJOR = 4.2.2
 PRODUCT_VERSION_MINOR = build
-PRODUCT_VERSION_MAINTENANCE = 2.6
+PRODUCT_VERSION_MAINTENANCE = 2.7
 
 PRODUCT_BUILD_PROP_OVERRIDES += BUILD_DISPLAY_ID=JDQ39