move ARM Ltd. to vendor dir

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/armltd/.gitignore b/board/armltd/.gitignore
new file mode 100644
index 0000000..a3df156
--- /dev/null
+++ b/board/armltd/.gitignore
@@ -0,0 +1,2 @@
+/integratorap/u-boot.lds
+/integratorcp/u-boot.lds