Android: print tailored warning if qml dependency path is a dir

androiddeployqt might be misleading when the path is adir
and the warning says that the file does not exist.

Change-Id: I1129f49af58a0637a240fcfd425a61b2ed15c840
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
(cherry picked from commit c730a29260eda298683803bfd5306926696eedb0)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit fb984aaa1e8933cbe08820b9adf51eab3f1825d0)
Reviewed-by: Andy Shaw <andy.shaw@qt.io>

src/tools/androiddeployqt/main.cpp

@@ -1882,6 +1882,12 @@ bool scanImports(Options *options, QSet<QString> *usedDependencies)
 
             QFileInfo info(path);
 
+            if (info.isDir()) {
+                if (options->verbose)
+                    fprintf(stdout, "    -- Skipping because path is a directory.\n");
+                continue;
+            }
+
             // The qmlimportscanner sometimes outputs paths that do not exist.
             if (!info.exists()) {
                 if (options->verbose)