.mailmap: add entry for Easwar Hariharan

Map my old, obsolete work email address to my current one.

Link: https://lkml.kernel.org/r/20250812180218.92755-1-easwar.hariharan@linux.microsoft.com


Signed-off-by: Easwar Hariharan <easwar.hariharan@linux.microsoft.com>
Cc: Carlos Bilbao <carlos.bilbao@kernel.org>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Shannon Nelson <sln@onemain.com>
Cc: Dmitry Baryshkov <lumag@kernel.org>
Cc: Hans Verkuil <hverkuil@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>