gitignore: ignore scripts/ihex2fw

scripts/ihex2fw is a generated binary and should be ignored

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/scripts/.gitignore b/scripts/.gitignore
index b939fbd..52cab46a 100644
--- a/scripts/.gitignore
+++ b/scripts/.gitignore
@@ -7,3 +7,4 @@
 bin2c
 unifdef
 binoffset
+ihex2fw