make get-google-files create /proprietary in it's own directory without
needing to be in that directory when it is called

Change-Id: I157cfd406f40db2ec4f059c5da6f5e01cfbc6c3e
diff --git a/get-google-files b/get-google-files
index ddd8d5d..3b4c822 100755
--- a/get-google-files
+++ b/get-google-files
@@ -13,7 +13,7 @@
 
 def download(version):
     try:
-        os.makedirs("proprietary")
+        os.makedirs(os.path.join(os.path.dirname(__file__), "proprietary"))
     except:
         pass
     if len(MIRRORS) > 1: