Fix uncrustify script

Add explicit path to the root source directory and allow invocation from
other directories. Also included qc_sqlite sources but excluded the SQLite
sources. Explicitly define the configuration in the MaxScale sources as
the one that will be used.

Changed from N invocations of uncrustify to one invocation with all files
as the program arguments. This should give a slight speedup when
formatting all sources.

script/maxscale-uncrustify.sh

@@ -1,7 +1,6 @@
 #!/bin/bash
 
-for file in $(eval "list-src -x 'qc_sqlite pcre2 build'")
-do
-    uncrustify --no-backup --replace --mtime $file
-done
+currdir=$(dirname $(realpath $0))
+
+$currdir/list-src -x 'sqlite-src-3110100 pcre2' $currdir/..|xargs uncrustify -c $currdir/../uncrustify.cfg --no-backup --mtime