SysDevInit
It is necessary to provide an implementation of the following
function:
PVRSRV_ERROR SysDevInit(void *pvOSDevice, PVRSRV_DEVICE_CONFIG **ppsDevConfig)
The SysDevInit() function is called by the GPU Services Server device create function (PVRSRVDeviceCreate()), via a per-OS call, for each device found in the system. This function must do any SoC specific device initialisation as well as allocating and setting up a number of data structures for the given pvOSDevice. These structures are presented in the following sub-sections.