Hexagon (target/hexagon) Change Hexagon maintainer

Change Hexagon maintainer from Taylor Simpson to Brian Cain
Put Taylor's gmail address in .mailmap

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org
Message-Id: <20230524165355.3157700-2-tsimpson@quicinc.com>
2 files changed