fix ioctl failing with ENOSYS.

[hakanrw]

Currently, ioctl calls are failing, as __fioOpsInitializeImpl and __fileXioOpsInitializeImpl are checking for the wrong symbol when setting operation handlers.

Offending lines:

ps2sdk/ee/libcglue/src/ps2sdkapi.c

Line 489 in 69f54b9

if (&_ioctl) __fio_fdman_ops_file.ioctl = __fioIoctlHelper;

ps2sdk/ee/rpc/filexio/src/fileXio_ps2sdk.c

Line 506 in 69f54b9

if (&_ioctl) __fileXio_fdman_ops_file.ioctl = __fileXioIoctlHelper;

_ioctl is not defined anywhere, thus x_ops_file.ioctl will remain as NULL. This in turn will result in an ENOSYS in _ps2sdk_ioctl. The correct symbol to check here would be _ps2sdk_ioctl. I corrected the error, and defined _ioctl in glue.c for consistency.

Tested and validated via PCSX2 emulator.

[uyjulian]

Thanks!