Prepare v2014.07-rc4

Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/Makefile b/Makefile
index e429212..686cab1 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@
 VERSION = 2014
 PATCHLEVEL = 07
 SUBLEVEL =
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc4
 NAME =
 
 # *DOCUMENTATION*