device.h: Add DRIVER_OP_MMC_SENSE to driver_return_code_t.
win32_ioctl.c: work around MS bug where buffer sizes are 0 or 1. Set
return code status if sense data passed back. Translate bad parameter
MS Windows error into a driver_return_code_t error.
test/driver/mmc.c: Reinstate old logic now that the MS Windows driver
has been made to work more like other drivers and copes with some of
the MS Windows causing failure here.