.gitignore: add missing ignores

Ignore output files created by "make defconfig; make".

Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/include/.gitignore b/include/.gitignore
index f0ce546..9d9b6c4 100644
--- a/include/.gitignore
+++ b/include/.gitignore
@@ -1,6 +1,10 @@
 /config
 
+/applets.h
 /applet_tables.h
 /autoconf.h
+/bbconfigopts_bz2.h
 /bbconfigopts.h
+/NUM_APPLETS.h
 /usage_compressed.h
+/usage.h