Prepare v2015.10-rc1

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/Makefile b/Makefile
index 605003e..7ccd614 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2015
-PATCHLEVEL = 07
+PATCHLEVEL = 10
 SUBLEVEL =
-EXTRAVERSION =
+EXTRAVERSION = -rc1
 NAME =
 
 # *DOCUMENTATION*