Add myself to mailmap

wlepera · awlauria · commit 270e68b5902a · 2021-11-16T15:58:29.000-05:00
Signed-off-by: William P. LePera <lepera@us.ibm.com> (cherry picked from commit d23c734)
diff --git a/.mailmap b/.mailmap
@@ -123,3 +123,5 @@ Wei-keng Liao <wkliao@users.noreply.github.com>
 Matthew G. F. Dosanjh <mdosanj@sandia.gov>
 
 Tomislav Janjusic <tomislavj@nvidia.com> Tomislavj Janjusic <tomislavj@nvidia.com>
+
+William P. LePera <lepera@us.ibm.com>
