MAINTAINERS: Step down as RISC-V maintainer

I haven't been active in coreboot, and coreboot-on-RISC-V in particular,
for quite a while, so let's update the MAINTAINERS file accordingly.

Change-Id: Ib65da0659ada94deed8756498a6948d1d1352ed0
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33619
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: ron minnich <rminnich@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions