MAINTAINERS: Update Konrad Dybcio's email address

Use my new Linaro address in place of my SoMainline one.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221107092207.5832-1-konrad.dybcio@linaro.org