Cios D2X v9 Beta R47

- ModMii 6.0.6 or higher is required to build d2x wads. The d2x-cios-installer doesn't need to be updated instead.
- EHCI module enhanced with interrupt callback to detect usb port status changes. Now usb instruments are plug&play just like they are when playing the original dvd through the disc channel (tnx to hermes cios source).
- Improved usb compatibility: some problematic hdd are now supported, shred skateboard controller is now supported, mics and usb instruments should work better than before (tnx to rodries for the great help).
- Fixed an issue in ehci descriptors (tnx to rodries).
- Fixed a slowdown issue when initializing the device. Now the device is not unmounted anymore if it's mounted already (tnx to rodries).
- Increased read/write sectors up to 64KB.
- Fixed an issue when checking if a usb device is inserted (tnx to rodries).
- Old SDHC and FAT modules have been removed to prevent random freezing with the new EHCI module. SDHC and FAT capabilities are now embedded rispectively in EHCI/USBS module and FS plugin.
- Patched Nintendo's SDI module to register a new device name without the initial slash, i.e. dev/sdio. This alternative name is required by nand emulation to prevent deadlock since we have to open the sd card from inside the fs-plugin.
- Registered an alternative device name for EHCI and USBS modules, i.e. dev/usb2 (same reason mentioned above).
- Increased EHCI thread priority from 0x48 to 0x78.
- Removed the easter egg introduced by Waninkoko in cios rev20.
- Added to EHCI a ioctl command to set watchdog timout. This should fix the issue which certain HDD that park their heads after less than 10 seconds of inactivity.
- Added to EHCI a ioctl command to save module configuration. This command is called by the ES plugin during ios reload block management.