Bump Impala version to v2.2.0-cdh5.4.1

Change-Id: I5e28c035041f2c1e1e43c97d6a6df91f817fab32

Author: yjwater

bin/save-version.sh

@@ -17,7 +17,7 @@
 # Note: for internal (aka pre-release) versions, the version should have
 # "-INTERNAL" appended. Parts of the code will look for this to distinguish
 # between released and internal versions.
-VERSION=2.2.0-cdh5
+VERSION=2.2.0-cdh5.4.1
 GIT_HASH=$(git rev-parse HEAD)
 BUILD_TIME=`date`
 HEADER="# Generated version information from save-version.sh"