MAINTAINERS: mark linux-samsung-soc list non-moderated

In fifteen entries mentioning linux-samsung-soc@vger.kernel.org in
MAINTAINERS, seven entries mention the list being moderated for
non-subscribers and eight entries do not. Clearly only one can be right,
though.

Joe Perches suggested that all vger.kernel.org are not moderated for
non-subscribers.

Remove all the remarks from the entries following Joe's suggestion.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/lkml/da6f30896a8fd78635b3ca454d77a5292a9aa76d.camel@perches.com/
Link: https://lore.kernel.org/r/20200914061353.17535-1-lukas.bulwahn@gmail.com


Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>