[PATCH] firmware: .gitignore: Add *.sum generated file

[Alexander Shiyan]

Signed-off-by: Alexander Shiyan <eagle.alexander923 at gmail.com>
---
 firmware/.gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/firmware/.gitignore b/firmware/.gitignore
index 8f9a956eb6..8e64a770ed 100644
--- a/firmware/.gitignore
+++ b/firmware/.gitignore
@@ -2,3 +2,4 @@
 
 *.bin
 *.bin-optee
+*.sum
-- 
2.39.1