patch 9.0.1406: ILE RPG files are not recognized

Problem:    ILE RPG files are not recognized.
Solution:   Add patterns for ILE RPG files. (Andreas Louv, issue #12152)
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 94b0848..c57f4da 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -494,6 +494,7 @@
     \ 'rnc': ['file.rnc'],
     \ 'rng': ['file.rng'],
     \ 'rnoweb': ['file.rnw', 'file.snw'],
+    \ 'rpgle': ['file.rpgle', 'file.rpgleinc'],
     \ 'robot': ['file.robot', 'file.resource'],
     \ 'robots': ['robots.txt'],
     \ 'ron': ['file.ron'],
diff --git a/src/version.c b/src/version.c
index 733eb46..1a0a036 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1406,
+/**/
     1405,
 /**/
     1404,