staging: vt6655: mac.c replace void __iomem * with struct vnt_private

Moving void __iomem down one level in the following functions
MACbIsRegBitsOn
MACbIsRegBitsOff
MACbIsIntDisable
MACvSetShortRetryLimit
MACvSetLongRetryLimit
MACvGetLongRetryLimit
MACvSetLoopbackMode
MACvSaveContext
MACvRestoreContext
MACbSoftwareReset
MACbSafeSoftwareReset
MACbSafeRxOff
MACbSafeTxOff
MACbSafeStop
MACbShutdown
MACvInitialize
MACvSetCurrRx0DescAddr
MACvSetCurrRx1DescAddr
MACvSetCurrTXDescAddr
MACvSetCurrTx0DescAddrEx
MACvSetCurrAC0DescAddrEx
MACvSetCurrSyncDescAddrEx
MACvSetCurrATIMDescAddrEx
MACvTimer0MicroSDelay
MACvOneShotTimer1MicroSec
MACvSetMISCFifo
MACbPSWakeup
MACvSetKeyEntry
MACvDisableKeyEntry

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>