Update sys_game_board_storage_read()

[brian218]

So far, I have already discovered that there are 3 codes (0x40, 0xC0, and 0xF0), all of which expect exactly the same data.
As a result, I think it is appropriate to remove the switch-case conditions, as the algorithm seems to be generic for this syscall.

[elad335]

Well I glanced at the disassembly of this syscall and this arg seems to be an out-pointer to 1 byte data. So it's not u8 it's vm::ptr<u8>. idk what it should output but yes it seems your guess is right.

[brian218]

Well I glanced at the disassembly of this syscall and this arg seems to be an out-pointer to 1 byte data. So it's not u8 it's vm::ptr. idk what it should output but yes it seems your guess is right.

@elad335 I checked https://www.psdevwiki.com/ps3/LV2_Functions_and_Syscalls, it says the two params are "out:uint8_t[0x10], uint8_t[1]", and the output of current implementation does meet my game's expectation.

[elad335]

It's fine it doesn't have to be implemented in this pr. And this wiki is edited by human beings it can have mistakes, I even corrected myself part of it in the past.