MAINTAINERS: update memblock tree URLs

memblock tree moved into mm/ namespace at git.kernel.org.

Update the T: entries for memblock to match it.

Link: https://patch.msgid.link/20260831102143.69265-1-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
This commit is contained in:
Mike Rapoport (Microsoft) 2026-08-31 13:21:43 +03:00
commit 6e33dc90df