patch 8.1.1662: cannot build uninstal.exe with some version of MinGW

Problem:    Cannot build uninstal.exe with some version of MinGW.
Solution:   Add -lole32. (Rene Nyffenegger, closes #4646)

Author: brammool

src/Make_cyg_ming.mak

@@ -1006,7 +1006,7 @@ install.exe: dosinst.c
 	$(CC) $(CFLAGS) -o install.exe dosinst.c $(LIB) -lole32 -luuid
 
 uninstal.exe: uninstal.c
-	$(CC) $(CFLAGS) -o uninstal.exe uninstal.c $(LIB)
+	$(CC) $(CFLAGS) -o uninstal.exe uninstal.c $(LIB) -lole32
 
 ifeq ($(VIMDLL),yes)
 $(TARGET): $(OUTDIR) $(OBJ)

src/version.c

@@ -777,6 +777,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1662,
 /**/
     1661,
 /**/