Fix typo in .editorconfig

Signed-off-by: Anton Komlev <anton.komlev@arm.com>
Change-Id: Ie3c9cea23ff260a4d7ec85b0a987816aba59533c
diff --git a/.editorconfig b/.editorconfig
index 86edf22..61cb258 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -14,7 +14,7 @@
 ################################
 # Default settings for all files
 [*]
-charset = uft-8
+charset = utf-8
 end_of_line = lf
 indent_size = 4
 tab_width = 4