[pvrusb2] bitmask cleanup

[Ingo Flaschberger]

Hi Mike,

In the next patch all bitmask's are "cleaned".
means: no more 0x00001 but 1 << 0;
Easier to read.

Hope it's ok.
The pvrusb2-debug.h is included again.

bye,
 	ingo flaschberger

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