Prepare v2021.04

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

Makefile

diff --git a/Makefile b/Makefile
index 84d1112..7b526f4 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 VERSION = 2021
 PATCHLEVEL = 04
 SUBLEVEL =
-EXTRAVERSION = -rc5
+EXTRAVERSION =
 NAME =
 
 # *DOCUMENTATION*