Prepare v2018.09

Signed-off-by: Tom Rini <trini@konsulko.com>

Makefile

diff --git a/Makefile b/Makefile
index f30dd8e..1891c3a 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 VERSION = 2018
 PATCHLEVEL = 09
 SUBLEVEL =
-EXTRAVERSION = -rc3
+EXTRAVERSION =
 NAME =
 
 # *DOCUMENTATION*