btree: fix tree corruption in btree_get_prev()
BUSFREQ_QOS_1280X720 activo de nuevo (mejora los gráficos en 2d en test)
lib/gcd.c: prevent possible div by 0
idr: fix a subtle bug in idr_get_next()
This will compile lib/bitmap.c with -Os instead of -O2/-O3
Update Tweaks
Optimizar Wifi
lib/rwsem.c: steal writing sem for better performance fixed for 3.0.y