Analysis shows existing P0/P1 patches cover ~85% of kernel/redox.patch
(2,335 lines). Extract the two uncovered sections as new patches:
P2-redbear-os-branding.patch (65 lines): Redox->RedBear OS branding in
aarch64, riscv64, x86_shared start files + device init logging milestones.
P3-eventfd-kernel.patch (368 lines): Full EventCounter implementation
in event.rs with blocking read/write, semaphore mode, wait conditions,
and EventScheme eventfd path dispatch in scheme/event.rs.
Update desktop status doc with Wave 2 changes.
