Cleanup out-or-tree building for some boards (.depend)

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/board/tqc/tqm5200/Makefile b/board/tqc/tqm5200/Makefile
index a5ce7bd..ce125e2 100644
--- a/board/tqc/tqm5200/Makefile
+++ b/board/tqc/tqm5200/Makefile
@@ -38,7 +38,7 @@
 	rm -f $(SOBJS) $(OBJS)
 
 distclean:	clean
-	rm -f $(LIB) core *.bak .depend
+	rm -f $(LIB) core *.bak $(obj).depend
 
 cam5200_flash.o:	cam5200_flash.c
 	$(CC) $(CFLAGS) -fno-strict-aliasing -c -o $@ $<
diff --git a/board/tqc/tqm834x/Makefile b/board/tqc/tqm834x/Makefile
index 4c0d204..8889726 100644
--- a/board/tqc/tqm834x/Makefile
+++ b/board/tqc/tqm834x/Makefile
@@ -40,7 +40,7 @@
 	rm -f $(SOBJS) $(OBJS)
 
 distclean:	clean
-	rm -f $(LIB) core *.bak .depend
+	rm -f $(LIB) core *.bak $(obj).depend
 
 #########################################################################
 
diff --git a/board/tqc/tqm85xx/Makefile b/board/tqc/tqm85xx/Makefile
index 8ea07f2..adda9d4 100644
--- a/board/tqc/tqm85xx/Makefile
+++ b/board/tqc/tqm85xx/Makefile
@@ -44,7 +44,7 @@
 	rm -f $(OBJS) $(SOBJS)
 
 distclean:	clean
-	rm -f $(LIB) core *.bak .depend
+	rm -f $(LIB) core *.bak $(obj).depend
 
 #########################################################################