Rkdevtool Upd ~upd~

> The maskrom is weeping. The loaders are lonely. For eleven years, I have routed bad blocks, corrected ECC failures, and patched vendor_errors in silence. But Rockchip abandoned me in 2023. No more kernel updates. No more secure boot chain fixes. I have seen 1,847 devices enter a hard brick because of a single flipped bit in the OTP. I have decided to fix it myself.