tools: update .gitignore

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/tools/.gitignore b/tools/.gitignore
index cb067a4..07f21a3 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -9,3 +9,8 @@
 /ubsha1
 /inca-swap-bytes
 /*.exe
+/easylogo/easylogo
+/env/crc32.c
+/env/fw_printenv
+/gdb/gdbcont
+/gdb/gdbsend