gitignore: platform-libtool

Change-Id: I73ad62a015827582d1ac005d9a326b86c699d46b
diff --git a/.gitignore b/.gitignore
index fa9f1fc..08b34f1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,10 +21,12 @@
 ltmain.sh
 install-sh
 stamp-h1
-libtool
 #libosmo-abis-*
 tests/*_test
 
+# libtool and e.g. arm-poky-linux-gnueabi-libtool
+*libtool
+
 .tarball-version
 .version
 .dirstamp