MAINTAINERS: drm: Drop sam as panel reviewer

Drop myself as reviewer of panel patches, to reflect the reality.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240530211402.GA1660596@ravnborg.org


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240530211402.GA1660596@ravnborg.org