Change editorconfig config spaces from 2 to 4

Change-Id: I6eb0fb725e1f829dff353c0e83f31052602e0e53
diff --git a/.editorconfig b/.editorconfig
index 0f112c3..56c2916 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -5,5 +5,5 @@
 insert_final_newline = true
 charset = utf-8
 indent_style = space
-indent_size = 2
+indent_size = 4
 max_line_length = 80