ignore *.patch files

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/.gitignore b/.gitignore
index 51bd99d..3433d7c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,6 +25,7 @@
 *.elf
 *.bin
 *.gz
+*.patch
 
 #
 # Top-level generic files