gitignore: add scripts/recordmcount

This file is generated, should be ignored by git.

Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/.gitignore b/scripts/.gitignore
index c5d5db5..e2741d2 100644
--- a/scripts/.gitignore
+++ b/scripts/.gitignore
@@ -7,3 +7,4 @@
 bin2c
 unifdef
 ihex2fw
+recordmcount