[rndis] Clear receive filter when closing the device

On Windows Server 2012 R2, closing and reopening the device will
sometimes result in a non-functional RX datapath.  The root cause is
unknown.  Clearing the receive filter before closing the device seems
to fix the problem.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
1 file changed
tree: 505afece90cb9ed881d9ae8aa275944a346e128b
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  2. src/
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