Standardize line endings

Change-Id: I0245e85037d76e86e4ad7430a7c93e609c144619
Issue-ID: INT-457
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..6313b56
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+* text=auto eol=lf