Update for 2016.11-rc1

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
diff --git a/Makefile b/Makefile
index cb030d4..4ea64b3 100644
--- a/Makefile
+++ b/Makefile
@@ -83,7 +83,7 @@
 all:
 
 # Set and export the version string
-export BR2_VERSION := 2016.11-git
+export BR2_VERSION := 2016.11-rc1
 
 # Save running make version since it's clobbered by the make package
 RUNNING_MAKE_VERSION := $(MAKE_VERSION)