build: Update TF-RMM release version to v0.6.0

Bump up the TF-RMM version to 0.6.0. This has been tested with
TF-A v2.12 release.


Change-Id: Ic666ae7fde959df421833acd9db4b9e9a457d986
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4cb1f69..488bc99 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,7 +48,7 @@
 # and also where the project directory and version variables are set up.
 #
 
-project(RMM VERSION 0.5.0 LANGUAGES C CXX ASM)
+project(RMM VERSION 0.6.0 LANGUAGES C CXX ASM)
 
 #
 # Set global flags.