Fix "warning: unused variable 'otg_dev' [-Wunused-variable]"
Fix "warning: 'dma_dumpregs' defined but not used [-Wunused-function]"
Revert "Fix "error: implicit declaration of function 'cpu_rq' [-Werror=implicit-function-declaration]" on non-SMP CPU's"
Removed BFS patch because it made RPi perform even worse. Also removed *.orig files
Update gitignore against .rej and .orig