Fix up amdgpu protocol
Fix definition of the bo_va_op_req flags that shall be a 32bit value. Previously flags were 64bit, but then the type of the flags changed to 32bit, while 64bit value the flag wasn't changed by accident.
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Fix definition of the bo_va_op_req flags that shall be a 32bit value. Previously flags were 64bit, but then the type of the flags changed to 32bit, while 64bit value the flag wasn't changed by accident.