.mailmap: specify spelling for Constantine Kharlamov

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/1999>
diff --git a/.mailmap b/.mailmap
index 65f0eec..69335e2 100644
--- a/.mailmap
+++ b/.mailmap
@@ -151,6 +151,8 @@
 Connor Abbott <cwabbott0@gmail.com> <connor.w.abbott@intel.com>
 Connor Abbott <cwabbott0@gmail.com> <connor.abbott@intel.com>
 
+Constantine Kharlamov <Hi-Angel@yandex.ru>
+
 Corbin Simpson <MostAwesomeDude@gmail.com> <mostawesomed...@gmail.com>
 Corbin Simpson <MostAwesomeDude@gmail.com> <mostawesomedude@gmail.com>