.gitignore: add compile to the list of things we need to ignore

Fun automake stuff...

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/.gitignore b/.gitignore
index 793376b..3b60485 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,6 +14,7 @@
 depcomp
 install-sh
 missing
+compile
 lsusb
 lsusb.8
 update-usbids.sh