MAINTAINERS: Remove Kevin as maintainer of BMIPS generic platforms
The last time Kevin did a review was sometime around 2014,
since then, he has not been active for the BMIPS generic platform
changes.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
[paulburton@kernel.org:
Drop the non-technical commit message content; Kevin's absence from
the role is ample reasoning for this change.] Signed-off-by: Paul Burton <paulburton@kernel.org>