Release v1.3.1

Signed-off-by: Wolfgang Denk <wd@denx.de>

Makefile

diff --git a/Makefile b/Makefile
index db3d1e8..1ff80b5 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@
 VERSION = 1
 PATCHLEVEL = 3
 SUBLEVEL = 1
-EXTRAVERSION = -rc1
+EXTRAVERSION =
 U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 VERSION_FILE = $(obj)include/version_autogenerated.h