mailmap: correct email aliasing for Oleksij Rempel

Ensure the current work email addresses for Oleksij Rempel are preserved
and not overridden by private address.  Alias the alternate work email to
the primary work email address.

Link: https://lkml.kernel.org/r/20231011112519.1427077-1-o.rempel@pengutronix.de
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org> # qcom
Cc: Mark Brown <broonie@kernel.org>
Cc: Qais Yousef <qyousef@layalina.io>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>