update .mailmap

Bug: aomedia:3223
Change-Id: Iae307273d57930b42f1cc0d4a1422c84c8e2c5a6
(cherry picked from commit d4dfe02d979f8469fd5d97ea62055f8f9a3ffcad)

.mailmap

diff --git a/.mailmap b/.mailmap
index 162d7fe..1f21868 100644
--- a/.mailmap
+++ b/.mailmap
@@ -64,9 +64,9 @@
 Remya Prakasan <remya.prakasan@ittiam.com>
 Roger Zhou <youzhou@microsoft.com>
 Ronald S. Bultje <rsbultje@gmail.com> <rbultje@google.com>
-Ryan Lei <ryan.z.lei@intel.com>
-Ryan Lei <ryan.z.lei@intel.com> <ryan.lei@intel.com>
-Ryan Lei <ryan.z.lei@intel.com> <zlei3@ZLEI3-DESK.amr.corp.intel.com>
+Ryan Lei <ryanlei@fb.com> <ryan.z.lei@intel.com>
+Ryan Lei <ryanlei@fb.com> <ryan.lei@intel.com>
+Ryan Lei <ryanlei@fb.com> <zlei3@ZLEI3-DESK.amr.corp.intel.com>
 Sachin Kumar Garg <sachin.kumargarg@ittiam.com>
 Sai Deng <sdeng@google.com>
 Sami Pietilä <samipietila@google.com>