freedreno/a6xx: Fix CP_BIN_SIZE_ADDRESS name

Also document some other registers gleaned from looking at the context
switch save/restore routines and fix CP_SDS_REM_SIZE, and make the names
line up with the CP perfcntr names. Note that the CP reads the draw
stream size in CP_SET_BIN_DATA5 using MEM_READ_ADDR, which is probably
why this was mistaken for the draw stream size address.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6123>
2 files changed